Extra Explaining Question - VAPOUR AND HUMIDITY

VAPOUR AND HUMIDITY

1. Animals that live in extreme climates have adapted to control their rate of heat transfer. For example, animals in hot climates often have larger ears than those that live in cold climates.
1. Explain how having large ears could be an advantages to an animal living in a hot climate


2. In hot conditions, many animals sweat. Explain, in terms of energies, how sweating will help keep an animal cool


2. Use the knowledge of Physics explain the following observations
   
   1. When we take exercise we sweat. Even on a warm day having wet skin can soon make you feel cold. Why does sweating help us stay cool?
   
   
   2. Even on a warm day having wet skin can soon make you feel cold. Explain why.
3. Explain why when a cold bottle is brought into a warm room it becomes misted over


4. Explain why a drop of methylated spirit placed at the back of hand feels much colder than a drop of distilled water at the same temperature.


5. Humidity is the amount of water vapour present in the atmosphere. Analyze four (4) sources from the which water vapour are evaporates to the atmosphere.


6. Explain briefly five (5) factors affecting evaporation of liquid.


7. Why can warm air hold more moisture than cold air?