Advertisements
Advertisements
Question
State what do you understand by the term ‘air’. Explain its importance to mankind.
Advertisements
Solution
Air is a mixture whose composition varies at different intervals of time and different places of the world. Man cannot survive without air and water and hence the air is very essential for survival.
RELATED QUESTIONS
What is wind?
Fill in the blank
Although we cannot see air, we can ___it.
Tick (√) the correct alternative from the choice given for the following statement.
Which of the following is not a greenhouse gas?
While freezing, the ______ of water is lowered.
Why is it said that-
Air is a homogeneous mixture of various gases.
Explain Lavoisier’s experiment which provided evidence to the discovery of components in air.
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Draw a neat labelled diagram for the following experiment.
To prove that oxygen is non-combustible, but supports combustion.
Complete the statement given below by filling in the blank with the correct word/s from the word/s given below
____________ is an example of a pollutant present in the air.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
