The process by which rocks are broken down into smaller fragments by the atmosphere and other factors in the environment is called a. erosion. b. sorting. c. wind. d. glaciation. e. weathering.

If a volcano’s magma is high in silica, the volcano will probably a. erupt quietly. b. remain dormant. c. erupt explosively. d. produce dark-colored lava.

In 2002, north korea announced that it was shutting down its nuclear facilities constructing a hydroelectric energy plant restarting nuclear weapon development changing to a free market economy

Arow of elements on the periodic table is called an