What is sludge?

Important Questions on Waste Management

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>Answer Orally (Formative Assessment)>Q 2

Define digestion.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>Answer Orally (Formative Assessment)>Q 3

Give two examples of on site sewage disposal system.

EASY

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>Answer Orally (Formative Assessment)>Q 4

What is clarified water?

MEDIUM

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q A

Give any $3$ harmful effects of untreated or inadequately treated wastes.

HARD

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q A

What happens when waste water containing soaps and detergents is released into rivers and ponds?

HARD

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q A

Describe the processes carried out at a wastewater treatment plant.

MEDIUM

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q A

How is sludge treated at wastewater treatment plants?

HARD

7th CBSE

IMPORTANT

Start Up Science 7>Chapter 18 - Waste Management>EXERCISES FOR FORMATIVE AND SUMMATIVE ASSESSMENT>Q A

As an enlightened citizen, what are your suggestions for proper disposal of sewage?