The average temperature of earth's surface has increased by about how much since 1980?

What is the second largest freshwater marsh in the United States?

What do mid-ocean ridges and hot spots beneath ocean plates have in common

Which area will likely provide the best farmland? A. Baja California B. Canadian Shield C. Great Plains D. Greenland Only ONE answer is correct!

In canada which economic region drills for fossil fuel

Choose the correct statement about the seasons. The Earth's orbit around the Sun is a highly eccentric ellipse, so the distance between Earth and Sun varies dramatically over the course of a year. Earth is the only planet that experiences seasons.

Solar energy has been used economically for many years to

What country is opposite the United States on the earth

What are the main ethnic groups in the United States and their percentage of the population? What languages are spoken in the United States, and what are those percentages?

Submersible used to study the deep oceans

Which planet has an atmosphere that demonstrates the extreme nature of the greenhouse effect? a. mars b. earth c. venus d. mercury