Question Text
Question 1 :
Fill in the blanks:
A weather cock shows the ______ in which the air is moving at that place.
Question 2 :
Plants produce oxygen during the process of making their own food. State True or False.
Question 3 : <img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61cc1a8f78c526e972caefba.PNG' />
Observe the above picture carefully and answer.
What is covering the nose and mouth of the policeman?
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 5 :
The component of air used by green plants to make their food is _____.
Question 8 :
Fill in the blanks:
Air is a ______ of some gases.
Question 9 :
Air helps in the movements of aeroplanes. State True or False.
