What are the environmental harms caused by mercury pollution?
What is age pyramid?
What are the main characteristics of the age pyramids of developed countries?
What are tropic levels? How many tropic levels can a food chain have?
Explain nitrogen cycle?
What is selective waste collection?
Explain the major terrestrial biomes?
What is gpp?
What are the phytoplankton and the zooplankton?
Define nuclear pollution?
What are the main interspecific ecological interactions?
Which is the autotrophic group responsible for the production of most part of the molecular oxygen of earth?
What is environmental resistance?
What are the main sources of mercury pollution?
What is benthos?