Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES

Author:Mukul Sahgal & A C Sahgal

Mukul Sahgal Science Solutions for Exercise - Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES

Attempt the free practice questions from Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. Living Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from Mukul Sahgal and A C Sahgal Solutions for Exercise 3: EXERCISES with Hints & Solutions

EASY
7th CBSE
IMPORTANT

A piece of plywood is kept on a table. You have to lift it from the table by blowing air over it at very high speed from a powerful fan. In which direction will you blow air?
 

EASY
7th CBSE
IMPORTANT

The fact that, increased wind speed results in reduced air pressure is known as
 

HARD
7th CBSE
IMPORTANT

Which of these best describes a tornado?

EASY
7th CBSE
IMPORTANT

Does air temperature increase or decrease as you go up in the atmosphere?

MEDIUM
7th CBSE
IMPORTANT

Does air pressure increase or decrease as you go up in the atmosphere?

MEDIUM
7th CBSE
IMPORTANT

Where is the air pressure higher at - equator or poles?

HARD
7th CBSE
IMPORTANT

Why does the wind swerve to one side instead of blowing straight?

EASY
7th CBSE
IMPORTANT

People get injured if a natural calamity such as a tornado strikes. They also get injured in accidents such as a road accident or a fire accident. Often you find people not ready to help the injured persons. Suppose you see an injured person lying on the road after a road accident. What will you do?