4th Quarter Science Test
Layers of the atmosphere and their definitions, green house effect, and cloud formation. Along with weather, weather insturments, wind and fronts. As well as how+cold air.
Questions and Answers
- 1.
Define what the Stratosphere is and what layer it is.
Explanation
The Stratosphere is a layer in the Earth's atmosphere that is located above the troposphere and below the mesosphere. It is considered the lower middle layer and is known for being the hottest layer. The Stratosphere also contains a significant amount of ozone, which helps to absorb and filter out the sun's harmful ultraviolet radiation. As you go higher up in the Stratosphere, the temperature increases, making it hotter.Rate this question:
- 2.
Define what the Mesosphere is and what layer it is.
Explanation
The Mesosphere is the layer of the Earth's atmosphere located above the stratosphere and below the thermosphere. It is considered the coldest layer of the atmosphere and is situated in the upper middle region. As altitude increases within the Mesosphere, the temperature decreases, making it progressively colder as it goes up.Rate this question:
- 3.
Define what the Troposphere is and what layer it is.
Explanation
The troposphere is the lowest layer of the Earth's atmosphere. It is characterized by having the highest atmospheric pressure compared to the other layers. Weather phenomena, such as clouds, rain, and storms, occur within this layer. Additionally, the temperature decreases as you move higher up in the troposphere.Rate this question:
- 4.
Define what the Thermosphere is and what layer it is.
Explanation
The Thermosphere is the highest layer of the Earth's atmosphere, located above the Mesosphere. It is characterized by extremely low density and high temperatures. Due to its high altitude, the Thermosphere is directly exposed to the vacuum of space and experiences very little pressure from the gases below. This layer is where the International Space Station and many other satellites orbit the Earth.Rate this question:
- 5.
What is the green house effect?
- 6.
Humidity is -
Explanation
Humidity refers to the amount of water vapor present in the air. It is a measure of the moisture content in the atmosphere. The correct answer options all convey this meaning, emphasizing that humidity is related to the presence of water vapor in the air.Rate this question:
- 7.
When do clouds form?
Explanation
Clouds form when water vapor and dust particles collect or when water vapor and dust come together. This process occurs when warm air rises and cools, causing the water vapor to condense around tiny dust particles in the atmosphere. As the water droplets continue to condense, they form visible clouds. Therefore, both explanations accurately describe the formation of clouds.Rate this question:
- 8.
Nitrogen takes up ____ of the atmosphere.
- A.
21%
- B.
33%
- C.
1/2
- D.
77%
- E.
70%
Correct Answer
D. 77%Explanation
Nitrogen makes up 77% of the atmosphere. This is because nitrogen gas (N2) is the most abundant gas in the Earth's atmosphere, comprising the majority of the air we breathe. Other gases like oxygen, carbon dioxide, and trace gases make up the remaining percentage.Rate this question:
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- 9.
What is the most aboundant green house gas?
- A.
Sulfur
- B.
Fossil fuels
- C.
Carbon Dioxide
- D.
CO4
Correct Answer
C. Carbon DioxideExplanation
Carbon dioxide is the most abundant greenhouse gas because it is released into the atmosphere through natural processes such as respiration and volcanic activity, as well as human activities such as burning fossil fuels. It is a major contributor to global warming and climate change. Sulfur is not a greenhouse gas, and fossil fuels are a source of carbon dioxide emissions. CO4 is an incorrect formula and does not exist.Rate this question:
-
- 10.
How are winds named?
Correct Answer
where it forms
where it came fromExplanation
Winds are named based on where they form and where they came from. The location where a wind system originates is important in determining its name. For example, the trade winds are named based on their origin in the tropics, while the polar easterlies are named for their origin near the poles. Additionally, the location where a wind system forms, such as over a specific body of water or landmass, can also influence its name. This naming convention helps in identifying and categorizing different wind patterns and systems across the globe.Rate this question:
- 11.
The Coriolis effect is -
Correct Answer
the curved path of wind
the appearance that a curved path is straightExplanation
The Coriolis effect refers to the curved path of wind caused by the rotation of the Earth. Due to the Earth's rotation, winds tend to curve instead of moving in a straight line. This effect is responsible for the formation of cyclones, trade winds, and other global wind patterns. Additionally, the Coriolis effect can also create an illusion that a curved path is straight, as observed in the trajectory of objects such as missiles or projectiles.Rate this question:
- 12.
Unequal heating of the Earth creates _____________.
- A.
Fronts
- B.
Wind
- C.
Temperature
- D.
Humidity
- E.
Pressure
Correct Answer
B. WindExplanation
Unequal heating of the Earth creates wind. This is because when different areas of the Earth's surface are heated unevenly, the air above them also heats up at different rates. This creates differences in air pressure, with areas of higher pressure moving towards areas of lower pressure. The movement of air from high pressure to low pressure creates wind, which is the horizontal movement of air across the Earth's surface. Therefore, wind is a direct result of the unequal heating of the Earth.Rate this question:
-
- 13.
What measures rainfall?
- A.
Psychrometer
- B.
Rain tube
- C.
Rain gauge
- D.
Barometer
- E.
Anemometer
Correct Answer
C. Rain gaugeExplanation
A rain gauge is a device used to measure the amount of rainfall. It consists of a cylindrical container with markings to indicate the amount of rainfall in inches or millimeters. When it rains, the water collects in the container, allowing for accurate measurement of the precipitation. The other options listed are not specifically designed to measure rainfall. A psychrometer measures humidity, a barometer measures atmospheric pressure, and an anemometer measures wind speed. The rain tube is not a commonly used device for measuring rainfall.Rate this question:
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- 14.
What measures realitive humidity?
- A.
Rain tube
- B.
Anemometer
- C.
Psychrometer
- D.
Barometer
- E.
Rain gauge
Correct Answer
C. PsychrometerExplanation
A psychrometer is used to measure relative humidity. It consists of two thermometers, one of which is a wet-bulb thermometer covered in a wet cloth. As the water evaporates from the wet cloth, it causes the temperature on the wet-bulb thermometer to decrease. By comparing the readings of the wet-bulb and dry-bulb thermometers, the relative humidity can be determined. The difference in temperature between the two thermometers indicates the amount of moisture in the air, allowing for an accurate measurement of relative humidity.Rate this question:
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- 15.
What measures atmospheric pressure?
- A.
Anemometer
- B.
Rain gauge
- C.
Barometer
- D.
Psychrometer
- E.
Rain tube
Correct Answer
C. BarometerExplanation
A barometer measures atmospheric pressure. It is a scientific instrument that is used to detect changes in air pressure. By measuring the weight of the air pressing down on the Earth's surface, a barometer can provide information about weather patterns and changes in atmospheric conditions. It is commonly used in meteorology to predict weather changes and is an essential tool for monitoring and forecasting.Rate this question:
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- 16.
What causes Earth's seasons?
- 17.
The transfer of thermal energy through an object is _______.
Correct Answer
conduction
ConductionExplanation
Conduction is the transfer of thermal energy through an object by direct contact between particles. When there is a temperature difference between two objects, the higher temperature object transfers heat to the lower temperature object through conduction. In this case, the correct answer is "conduction" because it is the process by which thermal energy is transferred through an object.Rate this question:
- 18.
Warm air rises and cool air sinking is __________.
Correct Answer
Convection
convectionExplanation
The given answer "Convection, convection" is correct. It is a process of heat transfer in fluids (liquids and gases) due to the movement of the fluid itself. Warm air rises because it becomes less dense and more buoyant, while cool air sinks because it becomes denser. This movement of air creates convection currents, which play a crucial role in weather patterns and the distribution of heat in the atmosphere.Rate this question:
- 19.
Radiation is
Correct Answer
electromagnetic waves
the transfer of energy as electromagnetic wavesExplanation
Radiation refers to the transfer of energy in the form of electromagnetic waves. Electromagnetic waves are a type of energy that can travel through space and matter. They include various types of waves, such as radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. These waves carry energy and can be emitted or absorbed by particles or objects. Therefore, the correct answer states that radiation is electromagnetic waves and the transfer of energy as electromagnetic waves.Rate this question:
- 20.
Cirrus clouds bring _______ weather.
Correct Answer
fairExplanation
Cirrus clouds bring fair weather because they are high-altitude clouds composed of ice crystals. These clouds indicate stable atmospheric conditions and are often associated with good weather. Cirrus clouds are thin and wispy, allowing sunlight to pass through easily, resulting in clear skies and pleasant conditions.Rate this question:
- 21.
Wind speed is measured by an
Correct Answer
anemometer
AnemometerExplanation
An anemometer is a device used to measure wind speed. It typically consists of several cups or blades that rotate when exposed to the wind. The rotation speed is then converted into a measurement of wind speed. Anemometers are commonly used in weather stations, airports, and other locations where wind speed is important to monitor.Rate this question:
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