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

What direction does a jet stream move across the U. S

What are two coastal features that are shaped by erosion?

Germany leads all European countries in

When the Voyager I and Voyager II spacecraft were exploring the outer planets, NASA flight controllers had to plan the crafts' moves well in advance.

Three reasons why southh africa must include renewable energy in its energy mix

In a recent election, Simon voted for a referendum witch would legalize gay marriage in his state. His worldview would be considered? Secular or biblical

The process by which natural forces move weathered rock and soil from one place to another is called?

How water is accessed?

Which geographic feature was not an obstacle to building a railroad in Kenya? valleys rivers farmlands deserts

The total population of an area results from an interaction of three forces. The three forces are A) fertility, mortality, and migration B) mobility, immigration, and population density C) demography, climate, and climate D) population density,