Explain some examples of migratory animals?
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Why is the sun the “motor” of the water cycle?
What is plutonium reprocessing? Why is it a big environmental issue?
Can food chain present quaternary consumers without having secondary or tertiary consumers?
Define predatism?
Why waste is considered one of the major environmental issues?
Define bioremediation?
What is the primary energy source for life on earth?
How are the grasslands of North America and of South America respectively called?
What is a biome?
What are the processes that autotrophic beings use to produce organic material from inorganic substances?
Why the tropical forests are also known as stratified forests?
Can the amount of available energy in a given tropic level to be larger than the available energy in inferior tropic levels? What does that condition means to the conformation of the energy pyramids?