How are open drains harmful to human health?

A.VERIFIED ANSWERfact-checked by tutors

Soln:

The opening draining system causes problems with the foul smell. An open drainage system is the breeding sources for mosquitos and flies. The open drainage system also helps the growth of disease-causing organisms. Hence drains are harmful to human health.

Suggested Q&A

SCIENCE · CLASS 7

ScienceCLASS 7
In towns and cities, generally, bore wells have to be dug very deep to get water as compared to bore wells dug in villages. Give suitable reasons.
ScienceCLASS 7
Gardeners gently dig up the soil around the roots of garden herbs (plants) frequently. Give reasons.
ScienceCLASS 7
Why is soil erosion relatively less in dense forests as compared to barren, open fields?
ScienceCLASS 7
Continuously water-logged soils are disadvantageous for plant growth. Why?
ScienceCLASS 7
15. Match the animals in Column I with their natural place of dwelling (habitat) in Column II. Column-I Column-II a) Earthworm i) Sand and beaches b) Garden Lizard ii) Burrows in soil c) Crab iii) Deep, narrow holes in dry soils d) Rodents iv) Surface of soil e) Scorpion v) Surface of shaded moist soils f) Snails and snugs vi) A horizon of moist soils
ScienceCLASS 7
Rajasthan is a desert state in India. Once while travelling to Rajasthan by train, Boojho observed several streams and rivulets of rainwater during the journey, but to his surprise, he did not see streams of water in the desert region even during rains. Help Boojho find a suitable explanation for this.