Tag: biogeochemical cycles - sedimentary

Questions Related to biogeochemical cycles - sedimentary

Lithosphere is reservoir of

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

  1. Carbon

  2. Oxygen

  3. Phosphorus

  4. Nitrogen

Show answer
Correct Option: C
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.' 

Crystalline rocks are natural source of

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

  1. Calcium

  2. Phosphorus

  3. Magnesium

  4. Sulphur

Show answer
Correct Option: B
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.' 

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

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

  1. a only

  2. b only

  3. c only

  4. a and b only

  5. c and d only

Show answer
Correct Option: D
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.'

Which is not a gaseous biogeochemical cycle?

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

  1. Sulphur

  2. Phosphorus

  3. Nitrogen

  4. Carbon

Show answer
Correct Option: A,B
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.'

In the phosphorus cycle, weathering makes phophate available first to 

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

  1. Decomposers

  2. Consumers

  3. Producers

  4. All of the above

Show answer
Correct Option: C
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'

The excreta rich in phosphorus would be called as _________.

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

  1. Organic excreta

  2. Inorganic excreta

  3. Guano deposits

  4. Both B and C

Show answer
Correct Option: C
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.

Weathering of rocks makes phosphorus available to first

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

  1. Producers

  2. Decomposers

  3. Consumers

  4. None of the above

Show answer
Correct Option: A
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.'

In water receiving regions, what does forest regulate

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

  1. Hydrological cycle

  2. Carbon cycle

  3. Nitrogen cycle

  4. Calcium cycle

Show answer
Correct Option: A

Sedimentary cycle having a small gaseous component also
is found in

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

  1. 'P' cycle

  2. 'S' cycle

  3. 'N' cycle

  4. 'C' cycle

Show answer
Correct Option: B

Which nutrient does not have a gaseous phase on earth?

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

  1. Carbon

  2. Nitrogen

  3. Phosphorous

  4. Calcium

Show answer
Correct Option: C