Earth's crust moves because
A. the continental crust floats on the oceanic crust.
B. the mantle is below the crust.
C. the mantle is very hot and flows from internal convection.
D. part of the mantle is hot enough to flow as a plastic solid.
Answer: D
You might also like to view...
What are some of the questions focused by geologists?
a. The formation and composition of our planet b. The causes of earthquakes and ice ages c. The evolution of life d. Protection of water resources e. Exploration of oil and ores d. Environmental remediation f. All of the above
How do climate scientists determine carbon dioxide concentrations for the ancient atmosphere?
What will be an ideal response?
Astronauts deployed a solar wind measuring experiment on the Moon because
A) the lunar surface is protected by an atmosphere. B) there is no electromagnetic energy arriving there. C) the solar wind does not reach the Earth's surface. D) no one else had attempted the experiment before and they wanted to be the first.
Which of the following is the most stable conformation of cyclopentane?
A) boat B) chair C) envelope D) twist