What are the main sources of mercury pollution?
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What is the formula of the net primary production?
Why is cannibalism an inharmonious intraspecific ecological interaction?
What are primary consumers? Can food chain present quaternary consumers without having secondary or tertiary consumers? Can a tertiary consumer of one chain be a primary or secondary consumer of another chain?
Define water cycle?
What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids?
How can a great biological diversity protect an ecosystem from environmental damages?
What are colonies?
Is the upward move of the warm air good or bad for the dispersion of pollutants?
Define environmental resistance?
What is the respective importance of nitrogen for the living beings?
What do you mean by sustainable ecology?
What is plutonium reprocessing?