Question

4. Answer the following questions.
a. Explain how extrusive rocks are formed?​

Answer 1

Answer:

Extrusive, or volcanic, igneous rock is produced when magma exits and cools above (or very near) the Earth's surface. These are the rocks that form at erupting volcanoes and oozing fissures.

Answer 2

Answer:

Extrusive rock is produced when magma exits and cools above (or very near) the Earth's surface The magma, called lava when molten rock erupts on the surface, cools and solidifies almost instantly when it is exposed to the relatively cool temperature of the atmosphere.

hope it helps you mate.....