Rock, erosion and volcanoes

The role that volcanoes play in helping us understand the inaccessible mantle of the earth.

• brings sand to earth's surface.

• brings water to earth's surface.

• brings magma to earth's surface.

• brings carbon dioxide to earth's surface.

The material ejected from a volcano.

• lava

• magma

• water

• sand

The name of a valuable gemstone that is frequently linked to the central opening of volcanoes.

• cobalt

• gold

• diamonds

• rube

The type of rocks that form from this ejected material.

• gneiss

• limestone

• basalt

• sandstone

The source of the magma found in the magma chamber.

• outer core

• mantle

• inner core

• crust

The type of volcano shown in the figure

• cinder

• caldera

• shield

• composite

Why is the ash cloud harmful to people?

• contains greenhouse gases and very cold

• contains oxygenated gases and very cool

• contains toxic gases and very hot

• contains CO2 gases and very transparent

Sedimentary rocks on earth's surface undergo a recycling process primarily through   ______

• deposition

• erosion

• weathering

• sublimation

Rocks, that contain fossils, are found in the earth’s ______

• mantle

• inner core

• outer core

• crust

Studying fossils in sedimentary rocks can show us how the Earth responds to   _______ changes caused by climate shifts.

• ecological

• geological

• environmental

• universal