QuestionMay 19, 2026

Which of these can determine the size of grains in igneous rocks? Amount of rare minerals Distance from a plate boundary Size of the volcano Cooling rate of molten rock

Which of these can determine the size of grains in igneous rocks? Amount of rare minerals Distance from a plate boundary Size of the volcano Cooling rate of molten rock
Which of these can determine the size of grains in igneous rocks?
Amount of rare minerals
Distance from a plate boundary
Size of the volcano
Cooling rate of molten rock

Solution
4.2(350 votes)

Answer

Cooling rate of molten rock Explanation 1. Identify the main factor Grain size in igneous rocks depends on crystal growth time. 2. Link factor to given options Longer cooling → larger crystals; shorter cooling → smaller crystals. This links directly to cooling rate.

Explanation

1. Identify the main factor <br /> Grain size in igneous rocks depends on crystal growth time. <br />2. Link factor to given options <br /> Longer cooling → larger crystals; shorter cooling → smaller crystals. This links directly to cooling rate.
Click to rate: