1.
A monsoon is
Correct Answer
C. A wind that changes direction with change of seasons and which usually brings very heavy rainfall.
Explanation
The correct answer is "a wind that changes direction with change of seasons and which usually brings very heavy rainfall." This answer accurately describes a monsoon as a wind that shifts direction with the change of seasons and is associated with heavy rainfall. Monsoons are typically experienced in certain regions, such as South Asia, where they play a crucial role in the climate and agriculture.
2.
A sea breeze is
Correct Answer
A. A local wind that blows from an ocean or sea toward land.
Explanation
The correct answer is "a local wind that blows from an ocean or sea toward land." This is because a sea breeze is a type of wind that occurs during the day when the land heats up faster than the adjacent water bodies. The warm air over the land rises, creating a low-pressure area, while the cooler air over the water creates a high-pressure area. The air moves from the high-pressure area over the water to the low-pressure area over the land, resulting in a sea breeze blowing from the ocean or sea toward the land.
3.
Wind is
Correct Answer
B. The movement of air due to differences in air pressure.
Explanation
The correct answer is "the movement of air due to differences in air pressure." This is because wind is caused by the uneven heating of the Earth's surface, which creates areas of high and low air pressure. Air moves from areas of high pressure to areas of low pressure, resulting in wind.
4.
A land breeze is
Correct Answer
A. A local wind that blows from the land toward a body of water.
Explanation
The correct answer is "a local wind that blows from the land toward a body of water." This explanation correctly defines a land breeze as a type of local wind that originates from the land and moves towards a nearby body of water. Land breezes typically occur at night or in the early morning when the land cools faster than the water, causing the air above the land to become denser and flow towards the water.
5.
Polar easterlies are
Correct Answer
B. The cold winds from the poles to the 60 degree latitudes that blow from east to west.
Explanation
Polar easterlies are the cold winds that blow from the poles to the 60-degree latitudes in an east to west direction. These winds are caused by the sinking of cool air near the 30-degree latitudes. The term "easterlies" refers to winds that blow from east to west.
6.
Westerlies are
Correct Answer
B. The winds found between the 30 degree and 60 degree latitudes that blow toward the poles from west to east.
Explanation
The correct answer is the winds found between the 30 degree and 60 degree latitudes that blow toward the poles from west to east. Westerlies are prevailing winds that blow from west to east in the middle latitudes of the Earth's atmosphere. They are located between the trade winds and the polar easterlies and are responsible for the weather patterns in many parts of the world. These winds are important for navigation and are also utilized by sailors and aviators for faster travel.
7.
Doldrums are
Correct Answer
C. A relatively calm area near the equator where warm air rises.
Explanation
The correct answer is "a relatively calm area near the equator where warm air rises." Doldrums refer to a region near the equator where the trade winds from the northern and southern hemispheres converge. In this area, the air becomes warm and rises, causing a decrease in wind activity. As a result, the doldrums are known for their calm and windless conditions.
8.
The horse latitudes are
Correct Answer
B. A relatively calm area located near both 30 degree latitudes where cool air sinks.
Explanation
The horse latitudes are a relatively calm area located near both 30 degree latitudes where cool air sinks. This explanation accurately describes the horse latitudes as a region of calm winds where cool air descends. The term "horse latitudes" originated from the old maritime practice of throwing horses overboard when ships were becalmed in this area. The sinking cool air creates a high-pressure zone, resulting in stable and calm weather conditions.
9.
Isobars
Correct Answer
C. Are lines used on maps or charts to connect points of equal air pressure.
Explanation
Isobars are lines used on maps or charts to connect points of equal air pressure. This means that all the points along a particular isobar have the same air pressure. Isobars are important in meteorology as they help to visualize and understand the distribution of air pressure across a region. They are particularly useful in analyzing weather patterns and predicting the movement of weather systems. Isobars do not cause global warming, nor do they represent the condition of the atmosphere at any given moment in a particular area.
10.
The Coriolis effect
Correct Answer
A. Causes global winds to curve.
Explanation
The Coriolis effect is a phenomenon caused by the rotation of the Earth. As the Earth rotates, the movement of air and other objects is deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This deflection causes global winds to curve instead of moving in a straight line. It is responsible for the rotation of large-scale weather systems such as hurricanes and cyclones.
11.
A mountain breeze is
Correct Answer
C. An afternoon breeze blowing toward the valley.
Explanation
The correct answer is an afternoon breeze blowing toward the valley. This is because a mountain breeze refers to the wind that occurs during the afternoon and flows from higher elevations down into the lower-lying valleys. As the sun heats up the mountain slopes, the warm air rises and creates a pressure gradient, causing the cooler air from the valley to flow up the mountainside. This phenomenon is commonly observed in mountainous regions and can provide a refreshing breeze in the afternoon.
12.
Jet streams are
Correct Answer
B. Strong, high speed winds in the upper tropospHere and lower stratospHere.
Explanation
Jet streams are strong, high speed winds that occur in the upper troposphere and lower stratosphere. These winds are characterized by their speed, which can reach up to 200 miles per hour. Jet streams are formed due to the large temperature differences between air masses in the atmosphere. They play a crucial role in weather patterns and can have a significant impact on the movement of storms and aircraft.
13.
Weather is
Correct Answer
A. The condition of the atmospHere at any given moment in a particular area.
Explanation
The correct answer is "the condition of the atmosphere at any given moment in a particular area." This answer accurately describes weather as the state of the atmosphere, including temperature, humidity, precipitation, wind speed, and cloud cover, at a specific time and location. It encompasses the current conditions such as sunny, rainy, cloudy, or stormy, and is constantly changing. This definition aligns with the commonly understood concept of weather and distinguishes it from other options that describe related phenomena such as air movement or pressure patterns.