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What is gpp? How is it related to photosysnthesis?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
What is the typical fauna of the tropical forests?
How is gpp related to photosysnthesis?
What is the respective importance of water, carbon, and nitrogen for the living beings?
What are persistent organic pollutants (POPs?
What is population density?
Explain the main limitations for population growth
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?
Besides mercury which other heavy metals cause toxic pollution?
Define population?
Define carbon cycle?
Why is the sun the “motor” of the water cycle?
Explain the typical conformation of the age pyramids of underdeveloped countries?
What are the environmental harms caused by mercury pollution?
