What two countries have nearly 50% of global coal reserves?
a. United States and Canada
b. United States and Russia
C. Brazil and Russia
d. Brazil and Canada

Which type of seismic waves are confined at the surface

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies? a. it's a region that exhibits a weak gravitational pull, thus maintaining a safe distance from the sun. b. it's an area that doesn't experience any major weather events that could cause mass extinctions. c. it's an area that's an optimal distance from the sun for potentially supporting life. d. it's a region that's unaffected by asteroid or meteor impacts.

Who believed that the universe was made of tiny uncuttable particles