Tag: bio-geo chemical cycles in nature

Quizzes (5) Questions (95)

Questions Related to bio-geo chemical cycles in nature

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

Water cycle refers to

  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.
Reveal answer Fill a bubble to check yourself
B Correct answer
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 )

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

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

  1. 1 day

  2. 1 week

  3. 1 month

  4. 1 year
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The residence time of water vapor in the atmosphere is relatively short, typically estimated to be about 8 to 10 days, which is approximately one week.

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

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

  1. Calcification

  2. Fixation

  3. Precipitation

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

Precipitation is the collective term for any form of water, liquid or solid, that falls from the atmosphere to the Earth's surface.

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

Water enters atmosphere by

  1. Filtration

  2. Evaporation

  3. Evapo-transpiration

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

Water enters the atmosphere primarily through evaporation from water bodies and transpiration from plants. Together, these processes are known as evapotranspiration, but evaporation is the most fundamental term for water entering the atmosphere from the surface.

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

The wormicide character of _____ destroys worms in water.

  1. Azotobacter

  2. Azolla

  3. Nostoc

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
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.
Multiple choice zoology bio-geo chemical cycles in nature nutrient cycles- flow of substances carbon cycle biogeochemical cycles - gaseous

Which bacteria is responsible to fix nitrogen in leguminous plants?

  1. Azotobacter

  2. Rhizobium

  3. Clostridium

  4. Saccharomycese
Reveal answer Fill a bubble to check yourself
B Correct answer
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.