What is a biodigester?
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What is the gross primary production of an ecosystem?
What is a population?
Explain how do the availability of water and light and the climate affect the growth of a population?
What is gpp? How is it related to photosysnthesis?
What is the climax stage of an ecological succession?
How does biological diversity relate to the characteristics of the abiotic factors of an ecosystem?
What are the main characteristics of the age pyramids of developed countries?
What is benthos?
What is numeric pyramid? What does it represent?
What are the advantages of leguminous crop rotation in agriculture?
What are the main chemical compounds that destroy the ozone layer?
What are biomass pyramids?