Question

koi toh answer kardo

If a soil sample A has 25% Water Holding capacity. Paheli have
poured water from measuring cylinder having 100 ml water on 50 g of soil sample Y till dripping. Water left in cylinder is 75 ml.

i. Calculate percentage of water retained by soil sample A.
ii. Which soil sample can be used to grow pulses?

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need step by step explanation

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Answer 1

Answer:

One day during the rainy season Paheli and Boojho observed an earth worm coming out of the soil. Paheli wondered whether there were other organisms also in the soil. Let us find out.

Activity

Collect some soil samples and observe them carefully. You can use a handlens. Examine each sample carefully. Make a list of the uses of soil.

Polythene bags and plastics pollute the soil. They also kill the organisms living in the soil. That is why there is a demand to ban the polythene bags and plastics. Other substances which pollute the soil are a number of waste products, chemicals and pesticides. Waste products and chemicals should be treated before they are released into the soil. The use of pesticides should be minimised.

Explanation:

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