101.
High BOD indicates
A
Highly polluted H2O
B
Less pollution in H2O
C
Less sewage
D
Less microorganism
Answer :
Highly polluted H2O
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
102.
Concept of Ecological pyramid was given by
A
Odum
B
Elton
C
Darwin
D
Reiter
Answer :
Elton
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
103.
A pond is a
A
Biome
B
Natural ecosystem
C
Artificial ecosystem
D
Community of plants & animals
Answer :
Natural ecosystem
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
104.
If water pllution continues at its present rate, it will eventually
A
Stop water cycle
B
Prevent precipitation
C
Make oxygen molecules unavailable to water plants
D
Make nitrate molecules unavailable to water plants
Answer :
Make oxygen molecules unavailable to water plants
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
105.
Aerenchyma is helpful in plants by
A
Providing buoyancy in hydrophytes
B
Absorption in still roots
C
Giving mechanical strength to plants
D
Giving flexibility to plants
Answer :
Providing buoyancy in hydrophytes
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
106.
Gas released during Bhopal tragedy was
A
Methyl isocyanate
B
Potassium isothiocyanate
C
Sodium isothiocyanate
D
Ethyl isothiocyanate
Answer :
Methyl isocyanate
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
107.
High value of BOD (Biochemical Oxygen Demand) indicates that :
A
Water is highly polluted
B
Water is less polluted
C
Consumption of organic matter in the water is higher by the microbes
D
Water is pure
Answer :
Water is highly polluted
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
108.
Community is
A
A group of independent and interacting population of different species
B
A group of independent and interacting population of same species
C
A group of independent and interacting population same species in a specific area
D
A group of independent and interacting population of different species in a specific area
Answer :
A group of independent and interacting population of different species in a specific area
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
109.
In your opinion, which is the most effective way to conserve the plant diversity of an area
A
By creating biosphere reserve
B
By creating botanical garden
C
By developing seed bank
D
By tissue culture method
Answer :
By creating biosphere reserve
Discuss Question
No explanation is given for this question. Let's discuss the answer together.
110.
In cities like Bombay and Calcutta the major air pollutants are
A
Ozone
B
Carbon monoxide and oxides of Sulphur
C
Hydrocarbons and not air
D
Algal spores and marsh gas
Answer :
Carbon monoxide and oxides of Sulphur
Discuss Question
No explanation is given for this question. Let's discuss the answer together.