Why do plants need nitrogen?

Important Questions on Air Around Us

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Short Answer Type Questions>Q 38

From where does dust enter into the air? What will happen if we breathe through our mouth? Explain.

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Short Answer Type Questions>Q 39

State any five uses of air?

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Short Answer Type Questions>Q 40

What is wind? State three uses of windmills.

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Long Answer Type Questions>Q 41

What is air? State the composition of air. Write any two properties of air?

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Long Answer Type Questions>Q 42

What substance is present in a bottle which appear to be empty? Explain why, Earthworms come out of the soil only during heavy rains?

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Long Answer Type Questions>Q 43

How do plants and animals maintain the balance of oxygen and carbon dioxide gases in air (or atmosphere)?

HARD

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Long Answer Type Questions>Q 44

How will you show that:
(i) air is present in a lump of soil?
(ii) air is dissolved in water?

MEDIUM

6th CBSE

IMPORTANT

Awareness Science For Sixth Class>Chapter 15 - Air Around Us>Long Answer Type Questions>Q 44

What is the atmosphere? Why is the atmosphere essential for life on earth? Why do mountaineers carry oxygen cylinders with them while climbing high mountains?