________ is the coherent theory that describes the motion of the Earth's lithosphere and associated processes and results.
A) Metamorphism
B) Contact metamorphism
C) Plate tectonics
D) Sea floor spreading
E) Pangaea
Question 2
Which of the following is true?
A) Lightning results from the buildup of electrical energy within clouds or between the cloud and the ground.
B) Thunder is caused by rapid contraction of the air.
C) The majority of lightning strikes occur over the oceans because of high rates of evaporation and friction.
D) Lightning is relatively uncommon on the Earth.
E) Thunder is caused by rapid cooling of the air.
The Interiors of Earth and Mercury
Spectral Line Motion in Binary Star Systems
Layers are deposited parallel to Earth’s surface. Younger layers are deposited on top of older layer
Wavelengths that penetrate the earth's atmosphere
The Distribution of Water on Earth
Earth 430 Million Years Ago