What are the main sources of mercury pollution?
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Explain global warming?
What is the typical vegetation of the grasslands?
What do numeric pyramids represent?
What is the typical shape of a population growth curve? How the biotic potential can be represented in the same graphic?
Explain why transgenics are considered a threat to the environmental safety?
What is the main means by which autotrophic beings obtain energy?
What is ecological succession?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
Why transgenics are considered a threat to the environmental safety?
What are the processes that autotrophic beings use to produce organic material from inorganic substances?
What are heterotrophic beings?
what are the difference between migration, emigration, and immigration?