Biogeochemical Cycles

IMPORTANT

Biogeochemical Cycles: Overview

This Topic covers sub-topics such as Global Warming, Carbon Cycle, Phosphorus Cycle, El Nino Effect, Algal Bloom, Red Tides and, Balancing Photosynthesis and Respiration

Important Questions on Biogeochemical Cycles

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Explain El Nino effect.

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A climate pattern that describes the unusual warming of surface waters in the eastern tropical Pacific Ocean is called El Nino. 

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Respiration is a process that remove carbon dioxide from atmosphere.

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What processes keep the concentration of atmospheric carbon dioxide in balance?

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What is an algal bloom and what causes it?

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Does carbon dioxide make water slightly acidic or basic when it dissolves?

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Select the correct statement(s) with respect to the given graph.

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Which of the following does not decrease the population size?

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Which of the following is/are correct regarding carbon dioxide?

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What could happen as a result of global warming? 

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Which one of the following is/are correct about the greenhouse effect?

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The two main process in the carbon cycle are 

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Describe the pathways followed by phosphorous in an ecosystem.

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Guano deposits are rich in

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Animals need large quantities of ________to make bones, teeth and shells.

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_______ is the major constituent of DNA and RNA.

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About 70% of the total global carbon is found in

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What is global warming and its adverse effects?

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Global warming can be reduced by increasing

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Which of the following may be a result of global warming?