Besides mercury which other heavy metals cause toxic pollution?
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What are autotrophic beings?
What are primary consumers?
Define bioremediation?
What is age pyramid?
Define selective waste collection?
What are the three main types of tropic pyramids studied in Ecology?
What is a community? What is the difference between the concepts of community and population?
Define dry mass?
Explain the difference between the concepts of food chain and food web?
Which harms can thermal inversion cause to humans?
What is eutrophication?
What is the group of aquatic beings composed of large number of photosynthetic beings?