Question

using your notes, please answer the following questions to the best of your ability.
fine - grained igneous rock results from rapid cooling. * 2 points
true
false
mafic magmas generally produce light - colored rocks. * 2 points
true
false

Explanation:

• For the first question: Fine - grained igneous rocks form when magma cools quickly. This rapid cooling does not allow large mineral crystals to form, resulting in a fine - grained texture.
• For the second question: Mafic magmas are rich in magnesium and iron. Rocks formed from mafic magmas (such as basalt) are generally dark - colored, not light - colored. Light - colored rocks are more commonly associated with felsic magmas (rich in silica, sodium, and potassium).

Answer:

1. True
2. False