geog

The tendency for energy to move toward a more dispersed or disorganized state is called:

There are rarely more than four levels in a food chain because:

In an ecosystem, gross primary productivity is contributed by:

Net primary productivity is highest in the _____________ seral stages of succession.

____________ is responsible for all necessary fats, proteins, and carbohydrates that constitute life.

Which element in the sedimentary cycle has an atmospheric component?

Plains bison are endemic to prairie grassland ecosystems because they:

A lake that is receiving agricultural runoff will likely be?

When both species interact and one benefits, but the other remains unaffected, we are referring to:

Which country consumes the most amount of water per capita?

Which of the following best determines residence time of a molecule?

In the Arctic, the effects of global warming have created:

What is the leading cause of the loss of global biodiversity?

Western red cedar, Sitka spruce and western hemlock dominate which Canadian Ecozone?