Exit Which of the following is NOT a source of Earth's internal heat?

a. mantle convection

b. radioactive substances

c. gravitational contraction

d. past bombardment by asteroids

Why are certain explorers not as recognized as Columbus is?

To learn more about earth, geographers organize information according to what themes? a. region, population, and place b. latitude, longitude, and movement c. location, population, and longitude d.

What direction is the Tug Hill Plateau from The Catskills?

39. In the visible light spectrum, what color below has the shortest wavelength? A) Red light B) Yellow light C) Blue light D) Green light

What is the primary cause of ocean waves

Describe what Scotland, Wales, and Ireland have done to maintain their unique cultures. Be sure to describe at least two examples for each country.

Why is most of Australia Unsuitable for agriculture A. the land is too dry. B. the soil is made up of clay C. the soil is made up of Volcanic ash. D. the terrain is too mountainous and rugged.

Which type of skin cancer decelopes

What occurs when the atmosphere is cooler than the geosphere

The process by which gases within Earth are emitted and eventually accumulate into an atmosphere is called o a. degassing O b. volcanic fumaroles C. ungassing O d. outgassing O e. none of the above