Question

Tick the correct answer:
1.The most important gas for our survival is :
a. nitrogen
b. oxygen
C. carbondioxide
d. methane
2.We can protect the environment by throwing waste :
a. on the road
b. in the parks
c. in proper garbage bins
d. in our neighbourhood
3.Air pollution causes:
a. breathing problems
b. polio c. jaundice
d. skin problem
4Any sound louder than___ decibel is harmful for our ears.
a. 20 6. 90 c. 100 d. 50​

Answer 1

Explanation:

1. ( b ) Oxygen is the most important gas

2. (c) in proper garbage bins

3. ( a ) breathing problems

4. ( b ) 90 decibles

Answer 2

Answer:

1oxygen

2in proper garbage bins

3breathing problem

4 100

Explanation:

i thing mera 4 Wala galate ha