Define ammensalim?
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Why is leguminous crop rotation used in agriculture?
What are the main causes of the loss of the biological diversity nowadays?
What is pollution?
Is monoculture a system that contributes to great biological diversity of an ecosystem?
Define an ecosystem?
Explain some examples of migratory animals?
What is gpp? How is it related to photosysnthesis?
Does thermal inversion occur in the winter or in the summer?
What are age pyramids?
What do energy pyramids represent?
What is the nitrogen cycle?
What are the main chemical compounds that destroy the ozone layer?