What percentage of precipitation falling on the land becomes surface water, or runoff, and flows to the sea in river and stream channels?

Describe what parts of Brazilian culture reflect African influences?

Why do small isolated islands have a greater rate of species extinction than larger, less isolated islands?

Why is North Africa subject to foreign invasions

3. One of _ moons is larger than the planets Pluto and Mercury. a. Neptune's b. Pluto's c. Uranus's d. Saturn's

Where are the Andes Mountains located?

How many offers were made ro the palestinians to create their own átate

Where is mt. kilimanjaro?

The primary purpose of Bretton woods conference was to

What was the World Trade Organization decision in 2006 related to genetically modified crops? Individual countries had the right to determine if they were going to allow genetically modified crops to come into their country.

12 out of 50 seventh graders said they would be willing to pay between $21-$30 dollars for a class trip. If there are 350 students in seventh grade, about how many would go oh the trip if it cost $30?