An igneous rock is found on the ground and has no identifiable crystals. What is the most likely origin of this rock? A. Molten material that cooled slowly
B. Molten material that cooled quickly
C. Rock that was eroded by surrounding rocks
D. Rock that was exposed to extreme pressure.

It’s B. Molten material that cooled quickly.

Explanation:

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.