Tag: species, communities and ecosystems

Questions Related to species, communities and ecosystems

The circulation or cycling of elements in an ecosystem is known as

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Geological cycling

  2. Geo-chemical cycling

  3. Bio-geochemical cycling

  4. Nutrient cycling

Show answer
Correct Option: D
Explanation:

Nutrient cycling is defined as the circulation or cycling of elements in an ecosystem. It is an essential process of an ecosystem. In this, a particular nutrient or element is transferred from environment to one living being to another living being and comes back to the environment. The various elements include carbon, nitrogen, sulphur, phosphorous, etc. 

Thus, the correct answer is 'Nutrient cycling.'

In ecosystem, cycling of nutrients is called

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Geological cycle

  2. Biogeochemical cycle

  3. Geochemical cycle

  4. Chemical cycle

Show answer
Correct Option: B
Explanation:

In ecosystem, cycling of nutrients is called biogeochemical cycle. In this, essential nutrients moves through biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments in an ecosystem. The various biogeochemical cycle includes carbon cycle, nitrogen cycle, phosphorous cycle, oxygen cycles. 

Thus, the correct answer is 'Biogeochemical cycle.'

____________ is a mixture of 50 - 90% of methane

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Natural gas

  2. Air

  3. Water

  4. Bio diesel

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Correct Option: A

Which chemical is used in air conditions and refrigerators?

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. CFCs

  2. Chlorine

  3. Fluorine

  4. Carbon

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Correct Option: A

What is percentage of S, Ca and K?

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. 2%

  2. 3%

  3. 7%

  4. 8%

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Correct Option: B

Shale Gas is becoming more and more popular in today's Global Gas Exploration Market. Which among the following property of Shale Gas makes it a potential replacement to the conventional Natural gas?

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Its distinct Chemical Property which makes it less polluting.

  2. Its distinct physical property which makes it easy to store & handle.

  3. It's cost effective production comparing to the conventional Gas.

  4. It's availability in huge Reserves.

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Correct Option: D

Cycling of elements in any ecosystem is called as

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Chemical cycle

  2. Geochemical cycle

  3. Biogeochemical cycle

  4. Geological cycle

Show answer
Correct Option: C
Explanation:

In earth science, a biogeochemical cycle or substance turn over or cycling of substances is a pathway by which a chemical substance moves through both biotic and abiotic (lithosphere, atmosphere and hydrosphere) compartments of Earth. A cycle is a series of change, which comes back to the starting point and which can be repeated.

The utilization of elements and compounds in nature and their subsequent return to the environment is called

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Life cycles

  2. Cyclic pathway

  3. Material cycles

  4. Recycling

Show answer
Correct Option: C
Explanation:

The utilisation of elements and compounds in nature and their subsequent return to the environment is called material cycles. It is also called as a biogeochemical cycle. 
In biology, a life cycle is a series of changes in form that an organism undergoes, returning to the starting state.
Recycle is the conversion of waste into useful forms.
Cyclic pathways tend to use the last product they create to re-begin the cycle. 

So, the correct answer is option C.

Biogeochemical cycling means cycling of 

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Energy in ecosystem

  2. Gases between plants and the atmosphere

  3. Nutrients in an ecosystem

  4. None of the above

Show answer
Correct Option: C
Explanation:

Biogeochemical cycle is a pathway by which a chemical substance moves through both biotic and abiotic compartments of earth. The circulation of chemical nutrients like carbon, oxygen, nitrogen, phosphorus, calcium and water, etc., through the biological and physical world are known as biogeochemical cycles. In effect, the element is recycled, although in some cycles there may be places where the element is accumulated or held for a long period of time.

Which one of these is a sedimentary cycle?

botany energy flow in an ecosystem biogeochemical cycle nutrient cycles species, communities and ecosystems

  1. Phosphorous

  2. Hydrogen

  3. Oxygen

  4. Nitrogen

Show answer
Correct Option: A
Explanation:

Phosphorus cycle is an example for sedimentary cycle. 

A cycle which comprises the weathering of an existing rock, followed by the erosion of minerals, their transport and deposition, then burial, is called as sedimentary cycle. 
First cycle sediments are characterized by the presence of less resistant minerals and rock fragments. If this material is reworked through a second cycle, the less resistant minerals will be eliminated or altered to more stable products. 
The more sedimentary cycles, that a sediment has passed through the more mature, it will become and it will be dominated by well rounded resistant minerals.