Q.3.
Answer the following questions?
1) What are the various uses of soil?
2) Why do living organisms need nutrition?
3) Why is lightning not seen everyday during the rainy season?
4) Why are the houses in Rajasthan painted white?
How are organisms classified?
6) What are the modes of heat transfer?
Answers
Answer:
1)=Agriculture. Soil has vital nutrients for plants. ...
Building. Soil is an important part of the building process. ...
Pottery. Clay soil is used in making ceramics, or pottery. ...
Medicine. Soil is commonly used in antibiotics. ...
Beauty Products. Some beauty products are made with soil.
2)=They are necessary to the lives of people, plants, animals, and all other organisms. Nutrients help break down food to give organisms energy. They are used in every process of an organism's body. Some of the processes are growth (building cells), repair (healing a wound), and maintaining life (breathing).
3)=Answer. lightning is not seen everyday during the rainy season because When the sun heats the air close to the surface of the Earth, it rises. ... As the moisture cools, it condenses and forms heavy clouds.
4)=The houses in Rajasthan are painted to reflect the sunlight or rather not to absorb the heat by the walls of the house ....so that there is no transfer of heat from outside to inside of the house and thus the temperatur inside the house is less than outside.....
6)=There are three modes of heat transfer: conduction, radiation, and convection.