Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

In the following groups of materials, which group(s) contains only non-biodegradable items?

  1. wood, paper, leather

  2. polythene, detergent, PVC

  3. plastic, detergent, grass

  4. plastic, bakelite, DDT
Reveal answer Fill a bubble to check yourself
B,D Correct answer
Explanation
Non-biodegradable substances are the substances that can't be decomposed or degraded into simpler molecules by the action of microbes. Therefore these substances remain in nature for a long period of time. These include polythene, detergent, PVC (Polyvinyl chloride, a synthetic polymer of plastic) plastic, bakelite, DDT (a pesticide) etc.
Biodegradable substances can be decomposed into simpler molecules by the action of microbes. These include wood, paper, leather, grass etc.
So, the correct answer is option B and D.
Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Multiple Choice Questions
Which one is non biodegradable

  1. sewage

  2. market garbage

  3. liverstock waste

  4. DDT
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
DDT (dichlorodiphenyltrichloroethane) is a colorless and crystalline organochlorine known for its insecticidal properties.  It is nonbiodegradable and tends to accumulate and magnify in amount due to subsequent uses posing grave environmental impacts.
So, the correct answer is option D, DDT.
Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Non - biodegradable substances are the one which_________________

  1. Do not degrade

  2. Degrades efficiently

  3. Degrades very slowly

  4. Remains unharmed
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • Non-Biodegradable wastes are those that cannot break down or degrade for many years. These are waste that cannot change into manure and they pile up causing pollution. Burning these fuels causes more pollution in the environment. The non-biodegradable wastes become useful when they can be recycled.

So the correct option is 'Do not degrade'.

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Which of the following materials are non-biodegradable?

  1. Plastic mugs

  2. Egg shell

  3. Leather belt

  4. Both A and C
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Egg shell and leather belt are obtained naturally from living organisms and are made of biodegradable components.

Plastic mugs are synthesized by humans in factors by making artificial polymers using chemicals which ultimately becomes non biodegradable. It remains as it is for thousands of years in the same condition.
Thus, the correct answer is 'Plastic mugs.'

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Identify the inorganic impurity

  1. Urine

  2. Human faeces

  3. Phospahates

  4. Pesticides
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Urine, Human feces and pesticides consist or compounds made up of carbon and other organic constituents and accumulate as organic waste. While phosphates are the compounds considered as inorganic and they are the inorganic impurity in nature. 

Thus, the correct answer is 'Phosphates'.

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Find incorrect statement for Non-biodegradable pollutants:

  1. The non-biodegradable pollutants are decomposed by microbes

  2. They are degraded slowly

  3. They are often harmful

  4. DDT, BHC, plastics, broken glass are examples of non-biodegradable pollutants
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Non-biodegradable wastes are those that cannot be decomposed or dissolved by microbes or any natural agents. They remain on earth for thousands of years without any degradation.

So, the correct answer is 'the non-biodegradable pollutants are  decomposed by microbes

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Acid deposited in rain and snow is known as

  1. Wet Deposition

  2. Dry Deposition

  3. Acid Rain

  4. Rain Depolarization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Wet deposition refers to the process where acid pollutants are removed from the atmosphere and deposited on the earth's surface through rain, snow, or fog. Acid rain is the phenomenon itself, while wet deposition is the mechanism of delivery.

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

'volatile solids' represents

  1. Dissolved solids

  2. Organic Solids

  3. Colloidal Solids

  4. Suspended Solids
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Volatile solids are the portion of total solids that are driven off as gas during ignition at a specific temperature, typically 550 degrees Celsius. This fraction represents the organic matter present in the sample.

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

DDT is a _____________ pollutant

  1. Bio degradable

  2. Non bio degradable

  3. Un-biodegradable

  4. Naturally degradable
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

DDT (dichlorodiphenyltrichloroethane) is a synthetic pesticide that does not break down easily in the environment. Because it persists in soil and water and accumulates in organisms, it is classified as non-biodegradable.

Multiple choice biology waste products reduce, recycle, reuse importance of the conservation of natural resources recycling

Most harmful environmental pollutants are 

  1. Biodegradable

  2. Corrosive agents

  3. Non-biodegradable chemicals

  4. Toxic chemicals
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Waste that cannot be broken down by other living organisms is called as non-biodegradable. Non-biodegradable substances affect the environment. They may enter the food chain and harm the organisms in the higher trophic levels (by biomagnification), e.g., pesticides, like DDT, non-biodegradable substances like radioactive wastes, lead, mercury etc., affect the health of all living organisms.