Question

directions: drag the correct answers to the boxes.
two igneous rocks formed from the same magma body. sample a solidified deep underground, while sample b erupted and solidified at the surface. explain the difference
between the two samples by sorting the descriptions.
sample a
sample b
a extrusive
a rapid cooling
a small or no crystals
a coarse - grained texture
a intrusive
a fine - grained or glassy texture
a slow cooling
a larger crystals

Explanation:

Igneous rocks are classified based on their formation environment (intrusive/extrusive) and cooling rate (slow/rapid). Intrusive rocks (like Sample A) form deep underground with slow - cooling magma, allowing larger crystals to form and resulting in a coarse - grained texture. Extrusive rocks (like Sample B) erupt onto the surface with rapid - cooling magma, leading to small or no crystals and a fine - grained or glassy texture.

Answer:

Sample A: $\boldsymbol{\text{intrusive, slow cooling, larger crystals, coarse - grained texture}}$
Sample B: $\boldsymbol{\text{extrusive, rapid cooling, small or no crystals, fine - grained or glassy texture}}$