Which of the Earth's spheres is made up of the gases and air that surround the Earth and sustain life? A. the hydrosphere B. the lithosphere C. the biosphere D. the atmosphere

Which of the following does NOT make studying the ocean floor difficult? a. The ocean consists of salt water rather than fresh. b. The deep ocean is in total darkness. c. The water in the deep ocean is extremely cold. d.

What natural resources are found in the mountains of west texas

What do scientists use to divide the geologic time scale?

How does a contracting protostar convert gravitational potential energy into thermal energy?

Which of the following climates is most suited for physical weathering?

Describe how modern science operates and distinguish it from philosophy, pseudoscience, and religion. In recognition of these distinctions, what individual (s) and methods mark the beginning of Astronomy as a science?

What two tectonic plates caused the Himalayan mountains

The longest mountain range in North Africa is what?

Chemical weathering is noted by which of the following

What factor drove Great Britain to divide Ireland into two states in 1921?