Tag: bio-geo chemical cycles in nature

Questions Related to bio-geo chemical cycles in nature

The rate of evaporation depends on

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Temperature

  2. Volume of water

  3. Wind movement

  4. All of the above

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Correct Option: A

Water cycle refers to

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Scientific management of water in areas excessively plagued with water logging.

  2. Constant movement of water from ocean to land and back to ocean again

  3. An integrated attempt to recycle water in relatively arid regions

  4. Planning of water distribution in relatively dry areas.

Show answer
Correct Option: B
Explanation:

Water cycle refers to constant movement of water from ocean to land and back to ocean again.It happen when water changes from water vapor in the atmosphere to liquid water through condensation and precipitation and falls on land and via channels and river flows back to ocean and then back to water vapor through evaporation, transpiration, and respiration. 

so, the correct option is B. ( Constant movement of water from ocean to land and back to ocean again )

Condensation nuclei may be:

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Particles of dust

  2. Nitric acid particles

  3. Smoke from forest fires

  4. All of these

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Correct Option: D

The total mass of water vapor stored in the atmosphere at any moment is about ____________ of the world's supply of precipitation.

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. 1 day

  2. 1 week

  3. 1 month

  4. 1 year

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Correct Option: B

All forms of water that comes down on Earth, including rain, snow, hail etc. is known as ____________

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Calcification

  2. Fixation

  3. Precipitation

  4. Accumulation

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Correct Option: C

What causes gases to dissolve in atmosphere?

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Transpiration

  2. Precipitation

  3. Condensation

  4. Filtration

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Correct Option: B

Water enters atmosphere by

biology water a precious resource water cycle earth's energy budget bio-geo chemical cycles in nature solar energy and its applications

  1. Filtration

  2. Evaporation

  3. Evapo-transpiration

  4. Biosphere

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Correct Option: B

The wormicide character of _____ destroys worms in water.

zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

  1. Azotobacter

  2. Azolla

  3. Nostoc

  4. None of these

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Correct Option: A
Explanation:
The wormicide character that kills worms in water are Azotobactor.
Azotobactors are one of the Nitrogen-fixing bacteria. Hence they are used as bio-fertilisers for many plants. 
The size of Azotobactor varies from 1-20 μm in length and 1-2 μm. 
Azotobactors can be generally found in alkaline soil and aquatic regions. So, the correct answer is A.

The circulation of oxygen in various form through nature is called as

evs bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

  1. Respiration

  2. Circulation

  3. Oxygen cycle

  4. All of the above

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Correct Option: C

Which bacteria is responsible to fix nitrogen in leguminous plants?

zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

  1. Azotobacter

  2. Rhizobium

  3. Clostridium

  4. Saccharomycese

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Correct Option: B
Explanation:

Some bacteria maintain the soil fertility and others enhance it. The fertility of the soil is proportional to the nitrogen content. Nitrogen is an important ingredient in the structure and function of the living beings. Nitrogen-fixing bacteria like Azotobacter, Clostridium live free in the soil and fix atmospheric nitrogen. Rhizobium like bacteria live symbiotically with root systems of leguminous plants and fix from the atmospheric nitrogen. Therefore, the correct answer is option B.