MEDIUM
Earn 100

What are biodegradable pollutants? Give examples.

Important Questions on Biochemistry

EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
When vegetation is burnt in the absence of oxygen, which of the following will be formed ?
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which one of the following statement pertaining to pollutants is correct?
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
All are primary pollutants except
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What are biodegradable and non-biodegradable pollutants?
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Differentiate between primary and secondary pollutants.
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What are the main components of our environment? Explain each of them briefly.
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Which of the following is a biodegradable pesticide?
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Define environmental chemistry.
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Environment plays an important role in our life.
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Define environmental pollution. List three episodes of recent past of environmental pollution.
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What are primary and secondary pollutants?
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Harmful materials added to the environment are called
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Define an environmental pollutant. What do you understand by an environmental pollution model?
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment

The following table summarises the differences between biodegradable and non-biodegradable pollutants. Pick out the wrong differences and select the correct answer.

  Biodegradable pollutants Non-Biodegradable pollutants
(i) These are the pollutants which can be easily degraded by microorganisms These are pollutants which cannot be degraded into harmless materials
(ii) These can be used to produce energy (through biogas) compost, manure, etc. These are difficult to manage as a natural method of degradation is absent
(iii) These usually do not enter biogeochemical cycles These become a part of rapid turnover in biogeochemical cycles
(iv) Examples: DDT, BHC, plastics, polyethylene, glass, etc. Examples: Sewage, garbage, animal waste, etc.
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Components of environment are 
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Define ‘environmental chemistry’ and ‘environmental science’
HARD
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What is Environmental chemistry? Discuss its social relevance.
EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
Cotyledons are also called-
MEDIUM
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

EASY
Chemistry>Organic Chemistry>Biochemistry>Biochemistry and the Environment
What is a pollutant?