Match the following. 1. Plastic waste a. Three R's 2. Waste separation b. Eco-friendly material 3. Reduce, Reuse and Recycle c.Threat to the environment 4. Stainless steel d. Biodegradable, recyclable and non-recyclable

1- c Plastic waste is non-biodegradable waste. It is a threat to the environment. It does not rot or mix with the soil. 2-d The separation of waste is a very important step in waste management. It means sorting or dividing the waste into different waste bins. Green for biodegradable waste, blue for recyclable waste and red for non-recyclable waste. 3-a Reduce, Reuse and Recycle are the three R's. We must first reduce, then reuse and finally recycle. It can reduce environmental pollution. 4-b Stainless steel is an Eco-friendly material. Eco-friendly materials are either degradable or reusable and not environmentally harmful. 1. Plastic waste c. Threat to the environment 2. Waste separation d. Biodegradable, recyclable and non-recyclable 3. Reduce, Reuse and Recycle a. Three Rs 4. Stainless steel b. Eco-friendly material

E M B I B E

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Q 4

MEDIUM

4th Tamil Nadu Board

IMPORTANT

Earn 100

What is meant by eco-friendly material?

Important Questions on Green Environment

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>ACTIVITY

Write the waste management process in the correct order.
(Waste disposal, Waste collection and transportation, Waste separation, Waste recycling and composting)

$1 .$ _____

$2 .$ _____

$3 .$ _____

$4 .$ _____

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>ACTIVITY

Write any five non-recyclable items that you use or have seen in shop.

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Q 1

What is the first step in waste management?

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Q 2

Which is an example for non-biodegradable waste?

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Q 3

Picking up the waste is called _____.

EASY

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Q 4

_____ is the first 'R' in the Three R's.

MEDIUM

4th Tamil Nadu Board

IMPORTANT

Standard 4 Term III Science>Chapter 1 - Green Environment>Evaluation>Match the following

Match the following.

1. Plastic waste	a. Three R's
2. Waste separation	b. Eco-friendly material
3. Reduce, Reuse and Recycle	c.Threat to the environment
4. Stainless steel	d. Biodegradable, recyclable and non-recyclable