Answered

1.)Mantle materials rises in convection currents because heated materials become denser.

True or False?

2.)Convection currents in the earth's crust cause volcanoes?

True or False?​​

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Answer to No. 1:

False

Explanation:

The denser the material, the heavier the material is therefore the less dense material rises while the denser material sinks.

Answer to No. 2:

True

Explanation:

The repetitive process of convection current causes the formation and eruption of volcanoes and earthquakes.