Question

The ________ is an igneous intrusion which has a surface area of at least 100 square kilometers.

Answer 1

batholith

Explanation:

A batholith (from Ancient Greek bathos 'depth', and lithos 'rock') is a large mass of intrusive igneous rock (also called plutonic rock), larger than 100 km2 (40 sq mi) in area, that forms from cooled magma deep in Earth's crust.