Question Text
Question 1 :
Which of the following components of air is present in the
largest amount in the atmosphere?
Question 2 :
Moving air makes it possible to fly a kite. State True or False.
Question 3 :
Fill in the blanks.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain _____.
Question 4 :
Air helps in the movements of sailing yachts and glider but plays no role in the flight of birds and aeroplanes. State True or False.
Question 6 :
Fine hair inside the nose matches with which of the following?
Question 7 :
Birds can fly due to presence of air. State True or False.
Question 8 :
Fill in the blanks:
Mountaineers carry oxygen ______ with them, while climbing high mountains.
Question 9 :
Make a sentence using the given set of words.
Air, wind, motion, called
Question 12 :
The layer of air around the earth is known as _____.
Question 14 :
All living things require air to breathe. State True or False.
Question 15 :
We can feel air but we cannot see it. State True or False.
Question 16 :
Plants produce oxygen during the process of making their own food. State True or False.
Question 18 :
Fill in the blanks:
A weather cock shows the ______ in which the air is moving at that place.
Question 20 :
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Observe the above picture carefully and answer.
What is covering the nose and mouth of the policeman?
