MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
Earn 100
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.
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.
Important Questions on Wastewater Story
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
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?
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
EASY
7th Jammu and Kashmir Board
IMPORTANT
EASY
7th Jammu and Kashmir Board
IMPORTANT
MEDIUM
7th Jammu and Kashmir Board
IMPORTANT
