The layer of fat under the skin of polar bears is referred to as:
Camouflage
Heat resistant material
Blubber
Insulator
Which of the following is the measure of moisture present in air?
Temperature
Rainfall
Snow
Humidity
Choose the correct pairs based on the relation between temperature of a region and incidence of sun light.
1. Direct sun - cooler
2. Indirect sun - warmer
3. Direct sun - warmer
4. Indirect sun - cooler
1 and 4
2 and 3
1 and 3
3 and 4
Which of the following adaptions enable polar bears to remain warm?
Their fur is white
They have thick fur
They can remain in water for a long time
They have a strong sense of smell
The weathering caused due to temperature is called:
Physical weathering
Chemical weathering
Biological weathering
All the above
The hump of a camel is a reservoir of:
Fatty tissue
Milk
Water
All of the above
Which of the following are natural factors directly affecting rainfall?
1. Mountain range
2. Wind
3. Soil
4. Type of crops
1 and 2
Who invented barometer?
Toricelli
Leeuwenhoek
Galileo
