Chapter 9 SOLAR RADIATION, HEAT BALANCE AND TEMPERATURE

1. Consider the statements below:

1. Insolation is the amount of solar energy that reaches the Earth’s atmosphere.
2. The majority of the energy received by the earth’s surface is in short wavelengths.

Which of the following assertions is/are correct?

2. Every day, every season, and every year, the amount of insolation falling on the earth’s

surface varies. Choose the most important reason(s) from the list below.

1. the transparency of the atmosphere.
2. the configuration of land in terms of its aspect.
3. the angle of inclination of the sun’s rays.
4. the length of the day.

Which of the statements given above is/are correct?

3. The sun is directly overhead at noon on 21st June at:

4. Take a look at the following statement.

1. The amount of insolation is affected by the angle of descent of the rays.
2. The higher the latitude, the greater the rays’ angle of descent.

Select the correct response.

5. In which one of the following cities, are the days the longest?

6. Select the main reason why the color of the sky appears blue and

the sun appears red during sunrise and sunset.

7. consider the following statement .

1. Statement : (A) The subtropical deserts receive the most insolation.
2. Reason : (R)  Cloudiness is lowest in subtropical deserts.

Select the correct answer using the code given below.

8. consider the following statement

The earth after being heated by insolation transmits the heat to the atmospheric

layers near to the earth in long wave form. The air in contact with the land gets heated slowly and

the upper layers in contact with the lower layers also get heated. This process is called.

Choose the correct answer

9. The atmosphere is mainly heated by the:

10. Take a look at the following statement.

1. When two bodies of differing temperature come into contact with one another, conduction occurs.
2. The lower layers of the atmosphere are heated by conduction.

Select the correct response.

11. Think about the following sentence.

1. Convection is the process of heating the atmosphere vertically.
2. Advection is the heat transfer that occurs when air moves horizontally.
3. Air flow in the horizontal direction is more essential than in the vertical direction.

Select the correct response.

12. Make correct pairs from the following two columns.

 Choose the correct answer

13. consider the following statement .

1. Statement : (A) The earth does neither accumulate or lose heat as a whole.
2. Reason : (R)  The quantity of heat received as insolation is equal to the amount lost by the earth as a result of terrestrial radiation.

Select the correct answer using the code given below.

14. The main reason that the earth experiences highest temperatures in the

subtropics in the northern hemisphere rather than at the equator is :

15. with reference to   The temperature of air at any place is influenced by  consider the following statements

1. the latitude of the place.
2. the altitude of the place.
3. the air-mass circulation.
4. The presence of warm and cold ocean currents;

Which of the statements given above is/are correct?

16. During its revolution around the sun, the earth is farthest from the sun

(152 million km) on 4th July. This position of the earth is called