Carbon cycle is the process of circulation of carbon dioxide into the atmosphere. It is circulated through different processes such as respiration, burning of fossil fuels and also by the decomposition of dead animals and plants. During respiration, carbon dioxide is exhaled out by human beings. Similarly, all these processes release carbon dioxide into the atmosphere and the process is cyclic. The carbon cycle can be represented as:

EASY

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The major reservoir of carbon on earth is the .(Producers/ Ocean)

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Important Questions on Ecosystem

HARD

Biology>Ecology>Ecosystem>Nutrient Cycling

Give an account of the phosphorus cycle of an ecosystem.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Schematically represent phosphorous cycle.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Write Carbon cycle.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

The oceanic carbon reservoir constitutes

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.

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HARD

Biology>Ecology>Ecosystem>Nutrient Cycling

Represent the phosphorus cycle with a word diagram.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Differentiate between the carbon cycle and phosphorus cycle that operate in nature by giving two points.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Of the total incident solar radiation of percentage photosynthetically Active Radiation

(PAR)

captured by the plants

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Which one of the following element never goes to the atmosphere?

MEDIUM

Biology>Ecology>Ecosystem>Nutrient Cycling

Describe the model of the phosphorous cycle in the terrestrial ecosystem.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Which one of the following will accelerate phosphorus cycle?

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Select the pairs of sedimentary biogeochemical cycles.
I. Hydrogen cycle and water cycle
II. Phosphorus Cycle and sulphur cycle
III. Calcium cycle and magnesium cycle
IV. Carbon cycle and nitrogen cycle

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

Which of the following ecosystem has the maximum amount of biomass production?

MEDIUM

Biology>Ecology>Ecosystem>Nutrient Cycling

In a recent forest fire at the silent valley, phosphorous from the dead organisms was released into the soil due to a specific organism. Name the organism.

EASY

Biology>Ecology>Ecosystem>Nutrient Cycling

If 20J of energy is trapped at producer level, then how much energy will be available to peacock as food in the following chain?
plant