MEDIUM
8th Chhattisgarh Board
IMPORTANT
Earn 100

What are the uses of oxygen in daily life?

Important Questions on Air

MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 1
What are the main gases that pollute the air?
HARD
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 2
What difference do you notice on the layer of deposits on the leaves of a neem tree on the roadside and one planted away? What is the effect of these on the biological processes of the plant?
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 3
Name the gases responsible for the greenhouse effect.
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 4
Which are the gases mostly present in acid rain? How do they affect our lives?
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 1
What do you understand by atmospheric pressure?
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>NOW ANSWER THESE>Q 2
What will happen to the human body if the air pressure of an area suddenly decreases?
EASY
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>QUESTIONS FOR PRACTICE>Q 1
Which gas has highest percentage in air?
MEDIUM
8th Chhattisgarh Board
IMPORTANT
Science & Technology Class - VIII>Chapter 3 - Air>QUESTIONS FOR PRACTICE>Q 1
Nitrogen is used in the storage of food items because-