HARD
7th CBSE
IMPORTANT
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Write any five features of clayey soil.

Important Questions on Soil

HARD
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q H
What do you mean by soil erosion? What are the main causes of soil erosion? How can we prevent soil erosion?
MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q H

(a) Why is the percolation rate of water is highest in sandy soil?

(b) 200 ml of water takes 20 minutes to percolate completely in a particular soil. Calculate the percolation rate of water in this soil.

MEDIUM
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q I
To make roads, people break large rocks into smaller ones. Can this be called weathering of rocks?
HARD
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q I
Explain why we cannot make pots, toys and statues with sand and can make these with clay.
HARD
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q J
A student has two samples of soil: Sample-X and Sample-Y. He pours an equal amount of water in both. In sample-X, the water is standing whereas in sample-Y, there is no water. What type of soil can X and Y be?
HARD
7th CBSE
IMPORTANT
Exploring Science BASED ON THE LATEST NCF GUIDELINES 7>Chapter 9 - Soil>Exercise>Q J
Rahul wants to grow a plant that needs soil that has the right water-holding capacity, adequate air spaces and sufficient amount of humus, to grow well. Which soil should he choose?