Productivity of an ecosystem is best determined by the

A. total amount of biomass in the system

B. number of individuals of each species

C. number of species present in the ecosystem

D. total photosynthesis each year

If government borrows money, what is the likely result? Select one: a. there's more money for charity organizations to give to people in need b. there's less money for businesses to borrow c. there's less money for other countries to borrow d.

What pairs of polygons are congruent

A debris convergence zone, or "garbage patch," that can form in the center of the Pacific Ocean. How is the formation of this patch related to ocean currents? Where else in the world's oceans are garbage patches likely to form?

What type of political system does the United States have?

What happens in a convection cell? A. Cold, dense material sinks while hot, less dense material rises. B. Cold, dense material moves horizontally, while hot, less dense material moves vertically. C.

How could you tell what time of year or season and was

Which of the following is a nonrenewable resource? a. Oil b. Solar c. Water

In general what type of weather can you expect if a low pressure system is moving into your area

Use economic activity in a sentence

When NASA and a group of astronomers sent up a spacecraft designed to find planets orbiting other stars, they named it after Kepler. Why was this an appropriate name?