Jammu and Kashmir Board Solutions for Chapter: Wastewater Story, Exercise 3: EXERCISES
Jammu and Kashmir Board Science Solutions for Exercise - Jammu and Kashmir Board Solutions for Chapter: Wastewater Story, Exercise 3: EXERCISES
Attempt the practice questions on Chapter 18: Wastewater Story, Exercise 3: EXERCISES with hints and solutions to strengthen your understanding. SCIENCE A TEXTBOOK FOR CLASS 7 solutions are prepared by Experienced Embibe Experts.
Questions from Jammu and Kashmir Board Solutions for Chapter: Wastewater Story, Exercise 3: EXERCISES with Hints & Solutions
Wastewater released by houses is called _____.
Dried _____ is used as manure. (plastic/ sludge/ alcohol)
Solve this crossword puzzle:
Across
3. Liquid waste products.
4. Solid waste extracted in sewage treatment.
6. A word related to hygiene.
8. Waste matter discharged from the human body.
Down
1. Used water.
2. A pipe carrying sewage.
5. Microorganisms which causes cholera.
7. A chemical to disinfect water.
Study the following statements about ozone:
(a) It is essential for the breathing of living organisms.
(b) It is used to disinfect water.
(c) It absorbs ultraviolet rays.
(d) Its proportion of the air is about .
Which of these statements is correct?
The disease caused by polluted water
Malaria can be triggered by
Waste that can be broken down by bacteria is;
Stage of wastewater treatment for removing large particles,
