Define population growth rate?
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Define a population?
Define species?
Does thermal inversion occur in the winter or in the summer?
Why waste is considered one of the major environmental issues?
What is gpp? How is it related to photosysnthesis?
Explain how are the grasslands of north america and of south america respectively called?
Which type of energy is the light used in photosynthesis transformed.
Explain water cycle?
What is plutonium reprocessing?
Define ecosystem in your own language?
What are the destinations of the organic material fabricated by the producers?
What are the main chemical compounds that destroy the ozone layer?