Kerala Board Solutions for Chapter: For a Pollution Free Nature, Exercise 2: Exercise 2

Author:Kerala Board

Kerala Board Science Solutions for Exercise - Kerala Board Solutions for Chapter: For a Pollution Free Nature, Exercise 2: Exercise 2

Attempt the free practice questions on Chapter 1: For a Pollution Free Nature, Exercise 2: Exercise 2 with hints and solutions to strengthen your understanding. Science for Class 7 - Part 2 solutions are prepared by Experienced Embibe Experts.

Questions from Kerala Board Solutions for Chapter: For a Pollution Free Nature, Exercise 2: Exercise 2 with Hints & Solutions

MEDIUM
7th Kerala Board
IMPORTANT
Science for Class 7 - Part 2>Chapter 1 - For a Pollution Free Nature>Exercise 2>Q 1

Take equal quantities of sand, red soil and the soil from an area full of trees in three different test tubes. Pour a little hydrogen peroxide to test each test tube.

Which test tube produced the highest effervescence?

EASY
7th Kerala Board
IMPORTANT
Science for Class 7 - Part 2>Chapter 1 - For a Pollution Free Nature>Exercise 2>Q 2

Take equal quantities of sand, red soil and the soil from an area full of trees in three different test tubes. Pour a little hydrogen peroxide to test each test tube.

Which soil has the highest organic content? Why?