Q. Siltation in rivers, harbors and reservoirs is caused by

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Q. Standing water 'ecosystem' is known as

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Q. Graphical representation of trophic structure and function is known as

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Q. Number of organisms of different trophic levels in an ecosystem is identified as

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Q. Total amount of living material in an organism at different levels is known as

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Q. Balanced stability and existence of all organism in environment is known as

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Q. What does change over time and space?

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Q. Initial causes of ecological succession includes:

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Q. Initial causes of ecological succession, responsible for destruction of existed

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Q. Plants which lives for many years are known as

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Q. What are examples of primary succession?

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Q. Initial development of an 'ecosystem' is known as

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Q. Grasses, non flowering plants, shrubs and trees are examples of

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Q. What is re-establishment of ecosystem?

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Q. Which ecological succession is involved in migration, aggregation and competition?

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Q. How many types of ecological succession are there?

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Q. Which ecological succession are responsible for stabilization of community?

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Q. Amount of incoming solar radiations is, approximately

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Q. How does solar radiations travel through space ?

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Q. About 10% of solar energy is

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