What do all of the different organisms in a pond make up?

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f