Match the following. Column I Column II a. Asthma i. Polluted water b. Biotic components ii. Increase in level of carbon dioxide c. Cholera iii. Plants and animals d. Abiotic component iv. Polluted air e. Global warming v Soil and air

a-iv, Pollution of air with pollutants like chemical dust particles from factories, smoke from vehicles, cause diseases like bronchitis, asthma. b-iii, Biotic components are the living factors in the ecosystem and comprises all living beings such as plants and animals. c-i, Polluted water causes water-borne diseases like cholera. Another common waterborne disease is diarrhoea, which is caused due to unhygienic practices. d-v, Abiotic components are the non-living factors in the ecosystem. It comprises all non-living things such as soil that acts as a medium for plant growth, water that is essential for living and air that is needed by all organisms for breathing. e-ii, Increase in the level of carbon dioxide in the atmosphere causes global warming. This increases the temperature in the atmosphere. Column I Column II a. Asthma iv. Polluted air b. Biotic components iii. Plants and animals c. Cholera i. Polluted water d. Abiotic component v Soil and air e. Global warming ii. Increase in level of carbon dioxide

E M B I B E

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>THE WEB>Q 1

MEDIUM

4th CBSE

IMPORTANT

Earn 100

Complete the flow chart given below

Important Questions on Our Environment

EASY

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 1

A disease caused by drinking polluted water is _____.

EASY

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 1

An example of a biodegradable waste is _____.

EASY

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 1

_____ can be broken down by microorganisms.

EASY

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 1

Acid rain is caused due to _____ pollutants.

EASY

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 1

We can save the environment by _____.

MEDIUM

4th CBSE

IMPORTANT

The Incredible SCIENCE 4.>Chapter 14 - Our Environment>Exercise>Q 2

Match the following.

	Column I		Column II
a.	Asthma	i.	Polluted water
b.	Biotic components	ii.	Increase in level of carbon dioxide
c.	Cholera	iii.	Plants and animals
d.	Abiotic component	iv.	Polluted air
e.	Global warming	v	Soil and air