The less mass in a given volume of air, the

a. more the air weighs.

b. greater the air pressure.

c. more dense the air.

d. less dense the air.

One way magma can form is from: A. an increase in pressure along a rift valley B. a decrease in the amount of water which can occur at subduction boundaries C. an increase in temperature such as over a hot spot D.

2a. which season is the southern hemisphere experiencing on Dec 21?

In which area would surface water most effectively infiltrate into the local groundwater system? a. A stream in a steep-sided bedrock canyon in the mountains b. Streams flowing in the numerous channels of an alluvial fan c.

How were the locations of the continents 65 million years ago different from the locations today?

Most of the stars in the Milky Way will end their lives as a. white dwarfs. c. supernovas. b. black holes. d. red giants.

Apart from physical geography, human geography name the other branch

The crust, mantle, and core are all part of the a. atmosphere. b. biosphere. c. hydrosphere. d. geosphere. The study of the Earth's magnetic field is known as a. paleomagnetism. b. isochronism. c. topography. d. geology.

Which Sea is a major body of water located west of the Middle East. A. Mediterranean B. Red C. Black D. Dead

1. Lake Huron is __ of Lake Michigan. a. South b. East c. West

How long does Earth take to travel around the sun?