Tag: conservation

Questions Related to conservation

Monitoring and metering can 

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Increase efficiency of water distribution

  2. Promote water conservation

  3. Both A and B

  4. Reduce water suply

Show answer
Correct Option: C

The soil pores block and become ineffective in filtering the water due to 

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Disposal of oil in drainage pipe.

  2. Disposal of oil in open drain.

  3. Disposal of oil in garden.

  4. None of the above.

Show answer
Correct Option: B
Explanation:

Oil and fats can clog the drains reducing its effectiveness in filtering water. In open drains, they block the pores in the soil and thus hamper the filtration by soil. Hence, oil and fats should not be released into the drain.

So, the correct answer is 'Disposal of oil in open drain'.

Sheela's teacher said in her classroom that we should not dispose of motor oils and medicines in the drain. Why did her teacher say this statement?

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Motor oil and medicine allows the bacteria to grow.

  2. Motor oil and medicine hamper the degradation process.

  3. Motor oil and medicine blocks the soil pores.

  4. None of the above.

Show answer
Correct Option: B
Explanation:
  • Sheela's teacher said in her classroom that we should not dispose of motor oils and medicines in the drain because Motor oil and medicine hamper(prevent) the degradation process.
  • Chemicals present in motor oil and medicine kill the microbes that facilitate degradation process.so do not throw them down the drain.
  • So, the correct answer is 'Motor oil and medicine hamper(prevent) the degradation process.'.

Which of the following can kill water purifying microbes?

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Paints

  2. Cooking oils

  3. Vegetable peels

  4. None of the above

Show answer
Correct Option: A
Explanation:
  • The chemical present in paints, Solvents, Insecticides, motor oils, medicines may kill microbes that help purify water. So do not throw them down the drain.
  • Hence Paints can kill water purifying microbes.
  • So, the correct answer is 'Paints'.

Cooking oil should not be thrown down the drain because

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. They do not allow free flow of oxygen.

  2. They do not allow bacteria to decompose waste.

  3. They block the drainage pipes.

  4. None of the above.

Show answer
Correct Option: C
Explanation:
  • All the cooking oils should not be thrown in drains because it can harden and block the pipes. In an open drain, the fats clog the soil pores reducing its effectiveness in filtering water. 
  • Throw oil and fats in the dustbin.
  • Hence Cooking oil should not be thrown down the drain because they block the drainage pipes.
  • So, the correct answer is 'They block the drainage pipes'.

Drains get blocked by 

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Oil and tea leaves.

  2. Oil and chemicals.

  3. Chemicals and soil.

  4. Chemicals and water.

Show answer
Correct Option: B
Explanation:
Cooking oil and fats should not be thrown down the drain. They can harden and block the pipes. In an open drain, the fats clog the soil pores reducing its effectiveness in filtering water. Throw oil and fats in the dustbin. Chemicals like paints, solvents, insecticides, motor oil, medicines may kill microbes that help purify water. So do not throw them down the drain.


So, the correct answer is ''Oil and chemicals.

Black brown water that goes down the drain from sink is called as

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Septic water

  2. sewage water

  3. Wastewater

  4. All of the above

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Correct Option: D

Wastewater goes down the drain from

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Toilets

  2. Laundries

  3. Sink

  4. All of the above

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Correct Option: D

Water which contains contaminants is called as

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. Wates solution

  2. Waste water

  3. Portable water

  4. None of the above

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Correct Option: B

Waste water usually disposed in

biology wastewater story sewage treatment wastewater treatment - need and methods conservation

  1. water bodies

  2. underground

  3. forests

  4. wells

Show answer
Correct Option: A