Question

Class 7 Chapter 9 Since What I Learnt
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Answer 1

Explanation:

Soil is one of the most important natural resources. It is the uppermost layer of earth’s crust which is blackish-brown in colour. Major functions of the soil are:

• It supports plant growth by holding the roots firmly and supplying water and nutrients to the plants.
• It acts as a natural habitat for many organisms like an earthworm, fungi, bacteria, ants, etc.
• It is also essential for agriculture which provides us with food, clothing and shelter for all.
• It supplies water and nutrients to plants.

Therefore, we can say that soil is an inseparable part of our life.

about which subject you are asking..??

Answer 2

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idk

The general form for a pair of linear equations in two variables x and y is

a

3

1

it said to be consistent.