Question

2 WORKSHEET 15-A
Air Around Us
DATE : ..
A, Fill in the blanks.
1. Air is a
mainly containing oxygen, nitrogen and argon
2. Plants give out oxygen gas during a process called
3. All living organisms need
for respiration.
4. The supporter of combustion in the air is
5. The gas formed during cellular respiration is
Circle the odd-one out giving approrpirate reason.
..non dinvido
atorvoo​

Answer 1

Answer:

4)oxygen

2)photosynthesis

3)oxygen

1)Carbondioxide and water