1.
What prefix is used to identify clouds that appear from 2000 to 6000 meters above the surface?
Correct Answer
D. Alto-
Explanation
The prefix "alto-" is used to identify clouds that appear from 2000 to 6000 meters above the surface. This prefix is commonly used to describe middle-level clouds.
2.
Clouds are formed based on __________________ and height.
Correct Answer
form
Explanation
Clouds are formed based on certain atmospheric conditions and height. These conditions include the presence of water vapor, cooling of air, and the presence of condensation nuclei. When warm air rises and cools, it reaches its dew point and condenses into tiny water droplets or ice crystals, forming clouds. The height at which clouds form depends on factors such as the temperature and humidity of the air, as well as the presence of any lifting mechanisms such as mountains or fronts.
3.
Any storm with a low-pressure center causes a circular pattern of winds to form is a called a cyclone.
Correct Answer
A. True
Explanation
A cyclone is a type of storm characterized by a low-pressure center that causes a circular pattern of winds to form. This means that any storm with a low-pressure center can be classified as a cyclone. Therefore, the statement is true.
4.
Fog is....
Correct Answer
C. A cloud with its base on or near the ground.
Explanation
Fog is a meteorological phenomenon that occurs when there is a cloud with its base on or near the ground. It is formed when the air near the ground cools down and reaches its dew point, causing water vapor to condense into tiny water droplets. These droplets then form a cloud-like layer that reduces visibility. Fog is different from evaporation from the ground or condensation on the ground, as it specifically refers to the presence of a cloud-like formation near or on the ground.
5.
What type of cloud is shown in this image?
Correct Answer
A. Cumulus
Explanation
The image likely shows a cloud with a fluffy and rounded shape, which is characteristic of cumulus clouds. Cumulus clouds are formed by upward convection currents and are often associated with fair weather. They have a distinct puffy appearance and can vary in size and shape. The other options, cumulonimbus, altocumulus, and nimbostratus, do not accurately describe the cloud shown in the image.
6.
Clouds are mainly made of
Correct Answer
B. Water
Explanation
Clouds are mainly made of water. When warm air rises, it cools down and condenses into tiny water droplets or ice crystals. These droplets or crystals then gather together to form clouds. Clouds appear white because they reflect sunlight, and their color can vary depending on the size and shape of the droplets, as well as the angle of the sunlight. Therefore, water is the correct answer as it is the primary component of clouds.
7.
What kind of cloud is puffy and very white?
Correct Answer
C. Cumulus
Explanation
Cumulus clouds are known for their puffy and white appearance. They are usually low-level clouds that have a flat base and a rounded top. These clouds are formed by the upward movement of warm air, which causes water vapor to condense into visible water droplets. The white color of cumulus clouds is due to the reflection and scattering of sunlight by the water droplets.
8.
Long, skinny clouds are called
Correct Answer
A. Cirrus
Explanation
Cirrus clouds are long and skinny in shape, appearing as thin, wispy strands high up in the atmosphere. They are often associated with fair weather and indicate the presence of high-altitude winds. Cumulus clouds are large, puffy clouds with a rounded shape, while stratus clouds are flat and featureless, covering the sky like a blanket. "Hanging clouds" is not a recognized term for a specific type of cloud. Therefore, the correct answer is Cirrus.
9.
Cumulonimbus clouds are also called
Correct Answer
D. Rain clouds
Explanation
Cumulonimbus clouds are often referred to as rain clouds because they are associated with heavy rainfall. These clouds are characterized by their towering vertical development and can reach great heights in the atmosphere. Cumulonimbus clouds are formed through the convection process, where warm moist air rises rapidly and condenses, leading to the formation of raindrops. The presence of these clouds indicates the potential for thunderstorms, heavy precipitation, and sometimes severe weather conditions.
10.
High level clouds appear 20,000 feet above the surface of Earth.
Correct Answer
A. True
Explanation
High level clouds are typically found at altitudes of 20,000 feet or higher above the Earth's surface. These clouds, such as cirrus clouds, are composed of ice crystals and can often be thin and wispy in appearance. They are formed in the upper levels of the atmosphere where temperatures are very cold. Therefore, the statement that high level clouds appear 20,000 feet above the surface of the Earth is true.
11.
An ________________ is a large region of air that has a similar temperature and humidity.
Correct Answer
B. Air mass
Explanation
An air mass is a large region of air that has a similar temperature and humidity. It can cover a vast area and is characterized by its uniformity in these weather conditions. Air masses are important in determining the weather patterns in a particular region as they can bring different types of weather depending on their characteristics. They can be classified into different types based on their source region and can interact with other air masses or fronts to create weather changes.
12.
When one air mass meets a different air mass,this meetjng place between air masses is called a ______________.
Correct Answer
C. Front
Explanation
When one air mass meets a different air mass, the meeting place between them is called a front. A front is a boundary or transition zone where two air masses with different characteristics, such as temperature, humidity, and density, come into contact with each other. This interaction often leads to changes in weather conditions, such as the formation of clouds and storms.
13.
A _________________ is a rainstorm that includes lightning and thunder.
Correct Answer
A. Thunderstorm
Explanation
A thunderstorm is a type of rainstorm that is characterized by the presence of lightning and thunder. During a thunderstorm, there is a buildup of electrical charges in the atmosphere, which results in the occurrence of lightning. The rapid expansion of air surrounding the lightning bolt creates the sound waves we hear as thunder. Therefore, a thunderstorm is the correct answer as it accurately describes a rainstorm accompanied by lightning and thunder.
14.
Knowing the different clouds allows us to predict the weather.
Correct Answer
A. True
Explanation
Knowing the different types of clouds allows us to predict the weather because different types of clouds are associated with specific weather patterns. For example, cumulonimbus clouds are often associated with thunderstorms, while cirrus clouds are often associated with fair weather. By understanding the characteristics of different cloud types, meteorologists can make more accurate weather predictions.
15.
Hurricane winds whip up large waves in the ocean.These waves cause a bilge of water in the ocean known as a _______________.
Correct Answer
B. Storm surge
Explanation
When hurricanes occur, the strong winds generate large waves in the ocean. These waves lead to a buildup of water in the ocean, which is called a storm surge. This surge is characterized by a significant increase in the water level, often resulting in coastal flooding and damage.
16.
Raindrops that fall through a layer of cold air can freeze to form _______________.
Correct Answer
A. Sleet
Explanation
When raindrops fall through a layer of cold air, the temperature causes them to freeze and form ice pellets called sleet. This happens when the layer of cold air is thick enough to completely freeze the raindrops before they reach the ground. Sleet is different from snow because it starts as rain and then freezes, whereas snow forms directly from ice crystals in the atmosphere.
17.
Air pressure is measured with a(n)_______________.
Correct Answer
D. Barometer
Explanation
A barometer is used to measure air pressure. It consists of a sealed container filled with mercury or aneroid capsules that respond to changes in air pressure. When the air pressure increases, the mercury or capsules are compressed, causing the level of the mercury or the position of the capsules to rise. Conversely, when the air pressure decreases, the mercury or capsules expand, causing the level of the mercury or the position of the capsules to fall. By measuring these changes, a barometer can accurately determine the air pressure.
18.
Wind speed is measured with a(n) anemometer.
Correct Answer
A. True
Explanation
An anemometer is a device used to measure wind speed. Therefore, the statement "wind speed is measured with a(n) anemometer" is true. Anemometers typically have rotating cups or vanes that spin in the wind, and the speed of rotation is directly proportional to the wind speed. By measuring the rotation speed, anemometers can accurately determine the wind speed at a given location.
19.
Rainfall is measured with an instrument called a(n) _______________.
Correct Answer
C. Rain gauge
Explanation
A rain gauge is an instrument used to measure the amount of rainfall. It consists of a cylindrical container with markings on the side to indicate the level of rainfall. When rain falls into the gauge, it collects in the container, allowing for accurate measurement. The term "rain meter" or "rain measurer" is not commonly used to refer to this instrument, making "rain gauge" the correct answer. An anemometer, on the other hand, is used to measure wind speed, not rainfall.
20.
When a cold, dry, air mass meets a warm, moist, air mass,the cold air pushes the warm air __________
producing ________________weather.
Correct Answer
D. Upward,stormy
Explanation
When a cold, dry air mass meets a warm, moist air mass, the cold air pushes the warm air upward. This upward movement of warm air creates instability in the atmosphere, leading to the formation of stormy weather conditions. The warm, moist air rises rapidly, condenses, and forms towering cumulonimbus clouds, which are associated with thunderstorms and heavy rainfall. The collision of these two air masses results in the development of thunderstorms, strong winds, and potentially severe weather events.
21.
On a weather map, blue triangles on a line represent a(n)__________________; red half-circles on a line represent
a(n)_____________________.
Correct Answer
B. Cold front,warm front
Explanation
Blue triangles on a weather map represent cold fronts, while red half-circles represent warm fronts. Cold fronts occur when a mass of cold air moves into an area, displacing warmer air and often bringing storms and cooler temperatures. Warm fronts, on the other hand, occur when a mass of warm air moves into an area, replacing cooler air and typically bringing gentler weather and warmer temperatures. The use of different symbols on the weather map helps meteorologists visualize and track the movement of these air masses and predict weather patterns.
22.
During a thunderstorm, particles of rain and ice rub against one another as they rush upward and downward, creating _______________.
.
Correct Answer
B. Static electricity
Explanation
During a thunderstorm, the particles of rain and ice rubbing against each other cause friction. This friction generates static electricity, which is responsible for the occurrence of thunder.
23.
How are tornadoes and hurricanes alike?
Correct Answer
B. in both air rotates around a center
Explanation
Tornadoes and hurricanes are alike because in both weather phenomena, air rotates around a center. This rotation creates a swirling motion that is characteristic of both tornadoes and hurricanes.
24.
When does the funnel shaped cloud become a storm?
Correct Answer
D. When the tip touches the ground
Explanation
When the tip of a funnel-shaped cloud touches the ground, it becomes a storm. This is because the contact with the ground allows the cloud to fully develop and release its energy, resulting in the formation of a storm. The interaction between the cloud and the ground causes a significant increase in air circulation, leading to the formation of strong winds, heavy rain, and potentially dangerous weather conditions associated with a storm.
25.
Where are hurricanes fastest winds and heaviest rains found?
Correct Answer
B. Around the center
Explanation
In a hurricane, the fastest winds and heaviest rains are found around the center. This is because the center of a hurricane, also known as the eye, is the area of lowest pressure. As air rushes towards the center, it speeds up, resulting in strong winds. Additionally, the warm, moist air in the center of the hurricane rises, condenses, and forms heavy rain clouds. Therefore, the most intense weather conditions, including the strongest winds and heaviest rains, are typically found in the vicinity of the hurricane's center.
26.
Last Saturday, Violeta saw the sky is blue, the sun shines brightly and there is no rain. She visited her friends and played outdoor games. What kind of weather was Saturday morning?
Correct Answer
D. Fine weather
Explanation
The correct answer is "Fine weather" because the passage states that Violeta saw the sky is blue, the sun shines brightly, and there is no rain. These are all indicators of good weather conditions. Additionally, Violeta visited her friends and played outdoor games, which suggests that the weather was suitable for outdoor activities.
27.
It is a place where all the data about the weather are being gathered and evaluated.
Correct Answer
B. Weather station
Explanation
A weather station is a facility where data about the weather is collected and analyzed. It serves as a central hub for gathering information such as temperature, humidity, wind speed, and precipitation. This data is then used to generate accurate weather forecasts and provide valuable information to the public through various mediums like television and radio. In the context of the given options, the Philippines is a country and television and radio are communication mediums, whereas a weather station is the only option that fits the description of a place where weather data is gathered and evaluated.
28.
A barometer measures ________________.
Correct Answer
B. Pressure
Explanation
A barometer is a device used to measure atmospheric pressure. It helps in determining the changes in weather patterns and predicting upcoming weather conditions. By measuring the pressure exerted by the atmosphere, a barometer provides valuable information about the air pressure variations, which can indicate the likelihood of rain, storms, or calm weather. Therefore, the correct answer is pressure.
29.
Pressure is _______________.
Correct Answer
B. Higher at sea level
Explanation
At sea level, the pressure is higher because there is more air above pushing down. As altitude increases, the amount of air above decreases, resulting in lower pressure. Therefore, the pressure is higher at sea level compared to the top of a mountain.
30.
A place that doesn’t get much rain over many years would have a cold climate.
Correct Answer
B. False
Explanation
A place that doesn't get much rain over many years does not necessarily have a cold climate. The amount of rainfall in an area does not directly determine its temperature. There are various factors that influence climate, such as latitude, altitude, ocean currents, and atmospheric pressure systems. Therefore, it is not accurate to assume that a lack of rainfall automatically indicates a cold climate.
31.
What are scientist who study weather called?
Correct Answer
B. Meteorologists
Explanation
Meteorologists are scientists who study weather patterns, atmospheric conditions, and climate. They analyze data from various sources such as satellites, weather stations, and weather balloons to understand and predict weather phenomena. They use their knowledge to forecast weather conditions, issue warnings for severe weather events, and provide information to help people make informed decisions. Rainologists and biologists do not specifically study weather and are not the correct answer in this context.
32.
Which of these is not shown on a weather map?
Correct Answer
C. Population
Explanation
A weather map typically displays information related to weather conditions such as temperature, pressure, wind speed, and precipitation patterns. Isobars are lines connecting points of equal atmospheric pressure, and precipitation refers to any form of water that falls from the atmosphere to the Earth's surface. However, population data is not relevant to weather conditions and is therefore not shown on a weather map.
33.
In what ways does the Sun influence weather?
Correct Answer
D. All answers are correct
Explanation
The Sun influences weather in multiple ways. Firstly, it heats water on Earth, which leads to evaporation and the formation of clouds. Additionally, the Sun heats the air in the atmosphere, causing it to rise and create air currents. These air currents then contribute to the formation of weather patterns such as wind and storms. Therefore, all of the given answers are correct as they describe different aspects of how the Sun influences weather.
34.
The constant recording of weather information helps to determine the climate of an area.
Correct Answer
A. True
Explanation
Constant recording of weather information is crucial in determining the climate of an area because it allows for the analysis of long-term patterns and trends. By collecting data on temperature, precipitation, wind patterns, and other weather variables over an extended period, scientists can identify and understand the typical weather conditions and atmospheric characteristics of a specific region. This information is essential for studying climate change, predicting future weather patterns, and making informed decisions regarding agriculture, infrastructure, and disaster preparedness. Therefore, the statement is true.
35.
The movement of air is called ______
Correct Answer
B. Wind
Explanation
Wind is the correct answer because it refers to the movement of air. Wind is caused by differences in air pressure, where air moves from areas of high pressure to areas of low pressure. It can be felt as a breeze or a strong gust, and it plays a crucial role in weather patterns and climate.
36.
Which of these is not a weather instrument?
Correct Answer
B. Geiger counter
Explanation
A geiger counter is not a weather instrument because it is used to detect and measure ionizing radiation, not weather conditions. It is commonly used in nuclear power plants, laboratories, and in situations where there may be a risk of radiation exposure.
37.
What weather instrument tells wind direction?
Correct Answer
C. Wind vane
Explanation
A wind vane is a weather instrument specifically designed to measure the direction of the wind. It consists of a rotating arrow or a pointer that aligns itself with the direction of the wind. By observing the position of the arrow, meteorologists and weather enthusiasts can determine the wind direction accurately. This information is crucial for understanding weather patterns, predicting storms, and planning various outdoor activities. The other options listed, such as a rain gauge and barometer, measure different weather parameters and are not specifically used for determining wind direction. An anemometer, on the other hand, measures wind speed rather than wind direction.
38.
A meteorologist would use a ___________ to determine air pressure
Correct Answer
A. Barometer
Explanation
A meteorologist would use a barometer to determine air pressure because a barometer is a scientific instrument that measures atmospheric pressure. It consists of a glass tube filled with mercury or another liquid, with one end closed and the other end open to the atmosphere. As the air pressure changes, it causes the liquid level in the tube to rise or fall, providing a measurement of the atmospheric pressure. This information is crucial for meteorologists to understand and predict weather patterns.
39.
A snowstorm with 56-km/h (35-mph) winds and heavy snowfall?
Correct Answer
A. Blizzard
Explanation
A snowstorm with 56-km/h (35-mph) winds and heavy snowfall is commonly known as a blizzard. A blizzard is characterized by strong winds, low temperatures, and a significant amount of snowfall. These conditions can create whiteout conditions, making it difficult to see and navigate. The combination of high winds and heavy snowfall can also lead to snowdrifts and dangerous travel conditions. Therefore, the term "blizzard" is the most appropriate choice to describe the given scenario.
40.
Any storm with a low-pressure center that causes a circular pattern of winds to form is called a cyclone
Correct Answer
A. True
Explanation
A cyclone is defined as any storm with a low-pressure center that causes a circular pattern of winds to form. This means that the statement "Any storm with a low-pressure center that causes a circular pattern of winds to form is called a cyclone" is true.