Question

A. Choose the right answer:


1. Which gas plays a decisive role in affecting the climate of earth?


a. Oxygen
b. Carbon dioxide
c. Hydrogen


2. Which organism is the most affected by acid rains?


a. Mammals
b. Birds

c. Fish


3. Which living being is a good pollution monitor?


a. Mollusk
b. Shark

c. Sunflower


4. Which of the following causes the maximum noise pollution?


a. Pop music
b. Aircraft

c. Railway Engine


5. Which ecosystem is the oldest of all?


a. Tropical rain forest
b. Coral reefs

c. Mangroves ​

Answer 1

1) a. carbon dioxide

2) c. fish

3) c. sunflower

4) b. aircraft

5) a. Tropical rain forest

hope it helps u :D

Answer 2

Answer:

1(b)

2(b)Acid rain also leaches nutrients (calcium, magnesium, potassium) from soils and increases the availability of toxic alu- minum. Calcium deficiency is detrimental to birds and can increase absorption of other toxic metals, such as lead and cadmium.

3(c)

4(c)

5(c)