Where are the oldest rocks? where are the newest? seafloor spreading

1. Which type of wave vibrates both side to side and up and down? 2. Which type of wave is the first to arrive during an earthquake? 3. Which type of wave may make the ground roll?

What term is used when describing elevations of earth surface? A) geology B) astronomy C) topography D) oceanography

List the reasons for variations in salinity in the various oceans.

99% of Egypt's population lives on only 3% of the country's land. True False

What is a strike-slip fault? (a) a fracture caused by tension stress (b) a fold caused by shear stress (c) a fracture cause by shear stress (d) folding caused by tension stress

What happens in the arctic circle during summer? why?

What is the role of stratification to the civil engineer

A geyser is an example of geothermal power.

Which of the following factors is an example of an economic pull factor that could encourage a person to migrate?

Which scientist discovered the universe center was the sun not the earth?