1. What process occurs when magma diffrentiates? Select one: A. the shape of a v

Question

1.

What process occurs when magma diffrentiates?

Select one:

A. the shape of a volcano changes

B. the pressure on a magma increases

C. a volcano explodes

D. it rises in the crust

E. silica poor minerals crystallize, changing the composition of the magma

2.

A hot spot is where a plume of magma pierces through the Earth's core.

Select one:

True

False

3.

All of the following are groundwater features except:

Select one:

A. aquifers

B. ponds

C. aquitard

D. hydraulic gradient

E. porosity

4.

Felsic magmas usually contain high amount of iron and magnesium.

Select one:

True

False

5

The most abundant ion in seawater is chloride.

Select one:

True

False

6.

Shield volcanoes and submarine eruptions are examples of explosive eruptions.

Select one:

True

False

Explanation / Answer

1.E. silica poor minerals crystallize, changing the composition of the magma

2.False

A volcanic "hotspot" is an area in the mantle from which heat rises(not pierces through) as a thermal plume from deep in the Earth.

3)B. ponds

They are surface water features.

4)False

5)True

6)False

They are effusive.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.