Section 4-7: Igneous Rocks Igneous rocks form when molten rock cools and forms crystals. Magma is rock.

What an igneous rock looks like is determined by two things.

One is the of the magma.

The other is how the magma cools.

3. Different igneous rocks contain minerals with different compositions.

Mafic igneous rocks are and in color.
I. typically contain and .

II. Low in silica

Felsic igneous rocks contain and .
I. They are high in .

Which of the activities listed below could limit global warming by slowing the increase in atmospheric carbon dioxide levels? view available hint(s) select all that apply. a. replacing fossil fuels with nuclear energy b. burning vegetation to clear land for agriculture c. limiting soil erosion so organic matter takes longer to decompose d. choosing a fuel-efficient car, or bicycling to school or work e. using more electrical appliances and cars f. cutting down forests to build houses

What structure on the south african coast has a range of 63 km and releases flashes every 30 seconds?

In an effort to japan recover from the devastating effects of the 1929 depression, japanese military leaders in the 1930s formed an alliance with nazi germany negotiated more trade treaties with the soviet union closed its doors to western trade adopted a policy of imperialist expansion