an igneous rock is found on the ground and has no identifiable crystals. what is the most likely origin of…

an igneous rock is found on the ground and has no identifiable crystals. what is the most likely origin of this rock? molten material that cooled slowly molten material that cooled quickly rock that was eroded by surrounding rocks rock that was exposed to extreme pressure
Answer
Answer:
molten material that cooled quickly
Brief Explanations:
Igneous rocks without identifiable crystals form when molten material cools rapidly, preventing large - crystal formation. Slow cooling allows large crystals to form. Erosion and extreme pressure are not the main causes for this lack - of - crystal feature in igneous rocks.