G.
Give reasons.
1. Water treatment is done.
2.
We should not cut trees.
3. Clay is used for making pottery.
4.
It is important to stop soil erosion.
Answers
Answer:
2) Because holds the soil and stop soil erosion.
It also gives oxygen
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Answer:
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Explanation:
Questions:
Give reasons.
1. Water treatment is done.
Ans. Water treatment is done so that the harmful or toxic substances from water can be removed, in order To make it safe for human consumption. Many factories dump their wastes into oceans, seas, rivers, lakes, etc. If humans drink this polluted waste water, they will get ill at once. Thus, water treatment is done.
2.We should not cut trees.
Ans. We shouldn't cut trees for a number of reasons. Trees are extremely important for the environment. They help to give oxygen to the environment for people to breathe by photosynthesis, they prevent soil erosion since the roots hold the soil in place. The decayed remains of trees provide an important and nutrient rich layer of humus to the soil, which increases soil fertility. It also provides food to all living creatures.
3. Clay is used for making pottery.
Ans. Clay was used for making pottery and is still used for it due to its elastic behaviour. It can be moulded into any suitable shape, which makes it a great material for making pots.It is also easy to use and find, and is a cheap material as well, which is why clay is used for making pottery.
4.It is important to stop soil erosion.
Ans. It is really important to stop soil erosion. Soil erosion occurs when the equilibrium between the erosion and replacement of soil is disturbed. It is important to stop soil erosion as soil is the main source of the plants growth. All living creatures, directly or indirectly depend on plants for their food. Thus, without soil plants wont grow, and without plants we wont survive. Another reason is that it takes millions of years for soil to form by various processes such as decomposition, weathering, etc. Thus, soil needs to be conserved.