How does npp relate to the energy pyramids?
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What are the main types of waste?
Define a biodigester?
What is the respective importance of water for the living beings?
Explain why transgenics are considered a threat to the environmental safety?
Why waste is considered one of the major environmental issues?
What is the typical conformation of the age pyramids of underdeveloped countries?
Explain the main limitations for population growth
Define bioremediation?
Explain the main causes of the loss of the biological diversity nowadays?
Explain what is the most abundant form under which nitrogen is found in nature?
What is the typical vegetation of the tropical forests?
Explain how are the grasslands of north america and of south america respectively called?