Tag: hygiene - a key to healthy life

Questions Related to hygiene - a key to healthy life

Pollution can be controlled by:

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  1. Sewage treatment

  2. Manufacturing electrically operated vehicles

  3. By checking atomic blasts

  4. All of the above

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Correct Option: D
Explanation:

Checking atomic blasts will reduce radioactive pollution. Sewage pollution can be prevented by treating sewage before passing into water course, in sewage treatment plant or effluent treatment plant (ETP). Electrically operated vehicles will control automobile exhaust and improve the air quality in cities.

Which of the following filter is used for filtration of wastewater?

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Sand filter

  2. Grit filter

  3. Cloth

  4. Both A and B

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Correct Option: D

Rainwater can be preserved by building small reservoirs, contour building and

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. wall

  2. roof

  3. dams

  4. house

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Correct Option: C

When harmful substances get mixed with water it becomes

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. polluted

  2. muddy

  3. pure

  4. unclean

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Correct Option: A

Sewage water carry ______ that spread diseases.

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  1. plants

  2. animals

  3. micro organisms

  4. dirt

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Correct Option: C

Which of the following is not a water borne disease?

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. Diarrhoea

  2. Typhoid

  3. Hepatitis

  4. Conjunctivitis

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Correct Option: D

Storing water to make it available even after the rainy season is called

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. storage

  2. water management

  3. water purification

  4. none of the above

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Correct Option: B

Waste water from industries contain

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. microbes

  2. poisonous substances

  3. oil

  4. minerals

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Correct Option: B

When water is passed through filter beds of sand and gravel to remove smaller particles of dust is called

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. oxygenation

  2. chlorination

  3. sedimentation

  4. filtration

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Correct Option: D

Water pollution is mainly caused by

biology wastewater story basics of water pollution sewage treatment wastewater treatment - need and methods personal and public cleanliness who will do this? water borne disease hygiene - a key to healthy life

  1. earthquake

  2. human activity

  3. forest fire

  4. biological decay

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Correct Option: B