Dhiren M Doshi Solutions for Chapter: Soil, Exercise 3: Exercise

Author:Dhiren M Doshi

Dhiren M Doshi Science Solutions for Exercise - Dhiren M Doshi Solutions for Chapter: Soil, Exercise 3: Exercise

Attempt the free practice questions on Chapter 9: Soil, Exercise 3: Exercise with hints and solutions to strengthen your understanding. Exploring Science BASED ON THE LATEST NCF GUIDELINES 7 solutions are prepared by Experienced Embibe Experts.

Questions from Dhiren M Doshi Solutions for Chapter: Soil, Exercise 3: Exercise with Hints & Solutions

HARD
7th CBSE
IMPORTANT

What is meant by soil profile? Draw a sketch of the soil profile and label the various layers.

HARD
7th CBSE
IMPORTANT

Write any five features of clayey soil.

HARD
7th CBSE
IMPORTANT

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

(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

To make roads, people break large rocks into smaller ones. Can this be called weathering of rocks?

HARD
7th CBSE
IMPORTANT

Explain why we cannot make pots, toys and statues with sand and can make these with clay.

HARD
7th CBSE
IMPORTANT

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

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?