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state reason for the following statements:-

a}. Fertile soil has lot of humus

b}. Dust is a pollutant

c}. People love to fly kites near the sea shore

1) ​Humus is brown or black organic matter consisting of partially or wholly decayed plant and animal material like fallen leaves, dead plants and animals buried in the soil etc. It provides nutrients to the plants and increases the ability of soil to retain water. Fertile soil contains lots of microorganisms, which decay and decompose dead animal and plant material and thus add humus to the fertile soil.
2) Dust are small particles which can be of  chemical pollutants, dead skin cells, soil particles, smoke etc. It causes harm and discomfort for human health so it is considered as pollutant.
3)Because sea shore is windy, so it is easy to fly kites there.

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a)This is so because humus contains remains of dead plants and animals which in turn contain carbon and nitrogen which when decomposed by microorganisms gives carbon dioxide, and complex nitrogen The Fertile soil contains lots of microorganisms which decompose the complex dead bodies of animals and plants into simpler substance called Humus.c)On Earth, wind consists of bulk movement of air. It plays major role in recreational activity like kite flying. Sea shores are major windy areas where wind power can be used for kite flying because during day the air above land gets heated faster and starts rising. So the air above the sea moves into this area rapidly.

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