Chapter 4 Air

1. Take a look at the following remark about Air.

1. Our planet is encased in a thin layer of air.
2. Nitrogen is the most abundant element in air.
3. Air condenses when it comes into contact with a cool surface, resulting in water drops on the cooled surfaces.

Select the correct response.

2. consider the following sentence In the process of being present in the atmosphere,

apply the permanent gases of the atmosphere in increasing sequence.

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3. Take a look at the following statement.

1. Although nitrogen is the most abundant gas in the air, humans do not inhale it.
2. Plants require nitrogen for existence and obtain it from the air.

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4. Take a look at the following statement.

1. Green plants have the ability to manufacture oxygen through photosynthesis.
2. Green plants produce food from carbon dioxide and emit oxygen.
3. The amount of carbon dioxide emitted by humans or animals appears to be the same as the amount consumed by plants.

Select the incorrect response.

5. Consider the following statement: “Assemble the atmosphere layers from the earth’s surface (bottom) to the top.”

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6. Take a look at the following statement.

1. The Troposphere layer is where almost all weather phenomena occur.
2. Stratosphere is a good place to fly planes.
3. In the Mesosphere, there is a third layer of ozone gas.

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7. consider the following statement .

1. Statement : (A) Thickness of the troposphere is greatest at the equator.
2. Reason : (R) heat is transported to great heights by strong convectional currents.

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8. Thermosphere is an atmospheric layer that aids in:

9. Think about the following sentence.

1. Temperature refers to the degree of hotness or coolness in the air.
2. From the equator to the poles, the amount of insolation increases.

Select the correct response.

10. consider the following statement .

1. Statement : (A) Cities have substantially greater temperatures than villages.
2. Reason : (R)  During the day, the concrete and metals in structures, as well as the asphalt on roadways, heat up.

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11. consider the following statement .

1. Statement : (A) The air above us (humans) exerts a tremendous pull on our bodies.
2. Reason : (R)  The thin layer of air that surrounds the world is known as the atmosphere.

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12. Take a look at the following statement on air pressure.

1. Air pressure is strongest at sea level and lowers as one rises in altitude.
2. Air converges and rises above high-pressure areas.
3. The pressure drops significantly as we ascend the layers of the atmosphere.

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13. Think about the following sentence.

1. Cloudy sky and rainy weather are connected with high pressure.
2. Clear and sunny sky are connected with low pressure.

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14. Take a look at the following statement.

1. The direction of the wind is affected by the earth’s rotation around its axis.
2. Heat and moisture are redistributed throughout the globe by the wind.
3. Wind is the passage of air from a high-pressure location to a low-pressure one.

Select the correct response.

15. Consider the statement below.

1. The trade winds are Seasonal winds blow in a consistent direction throughout the year.
2. Winds in the area Blow in a small area just during a specific time of day or year.

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16. Take a look at the following statement.

1. Humidity refers to the amount of moisture in the air at any given time.
2. Clothes take longer to dry on a humid day, and sweat from our bodies does not drain as quickly.
3. The troposphere is the atmosphere’s most essential layer.

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17. Match the following

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