Shalini Samadhiya Solutions for Exercise 5: Exercises

Explain the factors on which the formation of soil depends.

Rakesh took some $1.5 \mathrm{Kg}$ garden soil in a pot and poured $1 \mathrm{L}$ of water in it. The pot had a hole at its base through which the water seeped out and got collected in another pot. He measured the amount of collected water and found it to be $650 \mathrm{mL}$. Find the percentage of water absorbed by the soil.

Look at the picture given. Label it and also mention the characteristic of each layer.

Formation of soil is a regular and natural process. Then why are people worried about soil erosion?

Raunak is a potter. What type of soil will he use for making toys and why?

Rohan had planted a cactus plant in the clayey soil and used to water it regularly. After some days, the plant died. What may be the possible reasons to which the cactus plant died?

Industries and houses are preferably developed on barren lands. Why aren't they developed in fertile areas? 

Nowadays, people prefer to follow the methods of organic farming instead of using chemical fertilisers to grow their crops. Do you think the method is beneficial for the soil and farmers alike? Give reasons to support your answer.