EASY
7th CBSE
IMPORTANT
Earn 100

Name two water-borne diseases.

Important Questions on Wastewater Story

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Oral Questions>Q 4
Name an alternative arrangement for city sewage disposal.
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 1

What is the contamination of water by harmful substances and germs etc. called?

EASY
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 2
How is the blackish-brown oily and lathery water that goes down the drain termed as? (Clean water / Wastewater)
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 3
What are the diseases caused by pollutants in water called?
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 4
What are the setups used for purifying wastewater called?
MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 5
Which bacteria decompose the biodegradable contaminants present in clarified water? (Aerobic bacteria/Anaerobic bacteria)
EASY
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 1

Name four diseases that can be caused by an improper drainage system.

MEDIUM
7th CBSE
IMPORTANT
Science 7>Chapter 18 - Wastewater Story>Summative ASSESSMENT>Q 2

How should the waste oil/ghee be disposed off?