Tag: biogeochemical cycle

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Questions Related to biogeochemical cycle

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Lithosphere is reservoir of

  1. Carbon

  2. Oxygen

  3. Phosphorus

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

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth includes the crust and the uppermost mantle. It makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sedimentary rocks. 

Thus, the correct answer is 'Phosphorous.' 

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Crystalline rocks are natural source of

  1. Calcium

  2. Phosphorus

  3. Magnesium

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

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth makes up the hard and rigid outer layer of the Earth. It is reservoir of phosphorus. The largest reservoir of phosphorus is sediments or sedimentary rocks. Crystalline rocks are sedimentary rocks. They are the natural source of phosphorous.  

Thus, the correct answer is 'Phosphorous.' 

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Out of nutrient cycles of sulphur (a) phosphorus (b) carbon (c) and nitrogen (d), which one is sedimentary?

  1. a only

  2. b only

  3. c only

  4. a and b only

  5. c and d only
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Biochemical cycle is also called as biogeochemical cycle or nutrient cycle. Biochemical cycle with gaseous phase includes various cycles like carbon cycle, nitrogen cycle, oxygen cycle. The nitrogen, carbon and oxygen are found in the gaseous form in the atmosphere. Calcium cycle, sodium cycle, phosphorous cycle, iron cycle, magnesium cycle, sulfur cycle are sedimentary cycles.

Thus, the correct answer is 'a and b only.'

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Which is not a gaseous biogeochemical cycle?

  1. Sulphur

  2. Phosphorus

  3. Nitrogen

  4. Carbon
Reveal answer Fill a bubble to check yourself
A,B Correct answer
Explanation

Biochemical cycle is also called as biogeochemical cycle or nutrient cycle. Biochemical cycle with gaseous phase includes various cycles like carbon cycle, nitrogen cycle, oxygen cycle. The nitrogen, carbon and oxygen are found in the gaseous form in the atmosphere. Calcium cycle, sodium cycle, phosphorous cycle, iron cycle, magnesium cycle, sulphur cycle are sedimentary cycles.

Thus, the correct answer is 'Sulphur and Phosphorus.'

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

In the phosphorus cycle, weathering makes phophate available first to 

  1. Decomposers

  2. Consumers

  3. Producers

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The natural reservoir of phosphorus is rock, which contains phosphorus in the form of phosphates. When rocks are weathered, minute amounts of these phosphates is mixed in soil and are absorbed by the roots of the plants. Herbivores and other animals obtain this element from plants. 

So, the correct answer is 'Producers'

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

The excreta rich in phosphorus would be called as _________.

  1. Organic excreta

  2. Inorganic excreta

  3. Guano deposits

  4. Both B and C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Marine birds plays a unique role in phosphorus cycle. These birds eat marine fish, which is rich in phosphorus . Their excreta are called a guano deposits.

Multiple choice zoology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Weathering of rocks makes phosphorus available to first

  1. Producers

  2. Decomposers

  3. Consumers

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

There are 4 layers of Earth, namely lithosphere (land), hydrosphere (water), biosphere (living), and atmosphere (air). Lithosphere of Earth includes the crust, sedimentary rocks and the uppermost mantle. It is reservoir of phosphorus. Hence, weathering of rocks makes phosphorus available to first producers.

Thus, the correct answer is 'Producers.'

Multiple choice biology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

In water receiving regions, what does forest regulate

  1. Hydrological cycle

  2. Carbon cycle

  3. Nitrogen cycle

  4. Calcium cycle
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Forests play a crucial role in the hydrological cycle by regulating water infiltration, transpiration, and runoff, which helps maintain water balance in receiving regions.

Multiple choice biology ecosystem : structure and function biogeochemical cycles - sedimentary biogeochemical cycle nitrogen and phosphorus cycles

Sedimentary cycle having a small gaseous component also
is found in

  1. 'P' cycle

  2. 'S' cycle

  3. 'N' cycle

  4. 'C' cycle
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The sulfur cycle is primarily a sedimentary cycle, but it has a significant gaseous component (such as sulfur dioxide and hydrogen sulfide) that allows it to circulate through the atmosphere.