Final answer:
The two main features found on the Moon are impact craters and lava flows, which are visible through a telescope. Impact craters are circular depressions formed by collisions with asteroids or comets, while lava flows are large patches of darker material caused by volcanic activity.
Step-by-step explanation:
The two main features found on the Moon are impact craters and lava flows. Impact craters are formed when asteroids or comets collide with the Moon's surface, creating circular depressions. These craters can range in size from small to very large, and are visible on the Moon's surface through a telescope. The other main feature, lava flows, are large patches of darker material that result from volcanic activity in the past. These flows are known as maria and can be seen with the unaided eye.