Tag: biology

Questions Related to biology

Which is not a component of human socio-cultural environment?

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Land

  2. Religion

  3. Community

  4. Caste

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Correct Option: A
Explanation:
Land cannot be directly a component of human socio-cultural environment as compared to religion, community and caste which determines  beliefs, social grouping etc. Land also becomes a tangible component as compared to others that are intangible. Land or property provides the economic status, whereas religion, community and caste gives an idea of the social and cultural inclination of the person.
So, the correct answer is 'Land'

Metallic pollutants released by automobiles that use leaded fuel is

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Arsenic

  2. Cadmium

  3. Lead

  4. Mercury

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Correct Option: C
Explanation:

Leaded fuel in the form of lead gasoline is banned recently due to its extremely harmful effects on health and pollution caused by it. Combustion of leaded petrol leads to release of lead in the environment causing dangerous effects on the health of all living organisms and environmental pollution. 

The main difference between leaded and unleaded petrol is the presence of an additive in leaded petrol called tetra ethyl lead.
So the correct option is C.

What are man-made sources of acid rain?

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Exhaust from vehicles

  2. Burning fuels

  3. Isoprene emissions

  4. All of above

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Correct Option: A

Tsai Lun is famous for inventing

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Paper

  2. Use of tannins

  3. Rubber

  4. Silk

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Correct Option: A

In humans, nitrates causes blood disease and

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Gastric cancer

  2. Bladder infection

  3. Skin infection

  4. Lung disease

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Correct Option: A

The largest store of carbon molecules on earth is in

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. The atmosphere

  2. Fossil fuels

  3. Marine sediments

  4. Living organisms

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Correct Option: C
Explanation:

When marine organisms die, their bodies sink into the sediments at the bottom of the ocean. The carbon from their bodies is released which forms marine sediments that arc the largest store of carbon on earth.

An ideal shelter for housing a temperature-measurement instrument should be:

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. White

  2. Black

  3. In the shade

  4. Both white and in the shade

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Correct Option: D

What is auxiliary energy in man subsidized solar powered ecosystem?

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Man and Machine

  2. wind and Rain

  3. Organic matter

  4. Nutrient cycle

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Correct Option: A

Public awareness of environment creates _____________

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Environment protection

  2. Environment degradation

  3. Environmental improvement

  4. Environmental cultivation

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Correct Option: A

Vulcanisation of Rubber is carried out to make it

biology human influences on the environment human intervention in ecosystems humans in the environment involvement of humans in the conservation of environment

  1. Soft

  2. Elastic

  3. Resistant to temperature changes

  4. Hard and inelastic

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Correct Option: C