2. Water vapour is a gas. 17 3. Most of the water vapour in the atmosphere is th

Question

2. Water vapour is a gas. 17 3. Most of the water vapour in the atmosphere is thought to have come from the Earth's hot interior. 4. The Southern Hemisphere has warmer summers and colder winters than the Northern Hemisphere. 5. Air is a poor conductor of heat. 6. An instrument that indicates both wind speed and wind direction is the aerovane. 7. On average, of all the solar radiation that strikes the outer atmosphere about 50% eventually reaches the Earth's surface. 8. Clear, calm nights are usually warmer than cloudy, calm nights 9. In a hilly region, the best place to plant crops which are sensitive to low temperatures is on the hillsides. 10. Hypothermia is most common in cold, dry weather.

Explanation / Answer

2- True ( Water vapour is a gas.The water vapour mixed with air behaves like any other gas.In particular, it contributes its own pressure to the total pressure of the atmosphere.

3- false ( evaporation on the surface causes water vapor formation )

4- False

5- TRUE

6- TRUE

7-false ( Its 22.5% of solar radiation that reaches earth)

8 false - (during clear and calm nights heat easily escapes from the environment and hence temperature is cooler whereas during cloudy nights the heat is trapped causing warmer conditions.)

9 TRUE - ( As the plant crop here is sensitive to low temperature along the hillslope there is less water accumulation and lowest temperature is found in the valley. )

10 false (. The most common causes of hypothermia are exposure to cold-weather conditions. Staying out in the cold too long. Being unable to get out of wet clothes or move to a warm, dry location causes it.

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