What is the phytoplankton?
What is competition?
What are the main types of waste?
How does net primary production relate to the energy pyramids?
What is Ecology?
What is the most abundant form of nitrogen in nature?
What is population density?
What is the relation between environmental resistance and the population growth according to the biotic potential curve?
Define environmental resistance?
What are tropic levels?
Explain the primary energy source for life on earth?
Into which type of energy is the light used in photosynthesis transformed.
What are the main chemical compounds that destroy the ozone layer?
What are species?
What are the environmental harms caused by mercury pollution? What are the main sources of mercury pollution?