Answer: Telescopes use lenses or mirrors to collect and focus waves from the electromagnetic spectrum, including visible light, allowing us to look at celestial objects. By studying the electromagnetic waves given off by objects such as stars, galaxies, and black holes, astronomers can better understand the universe.
Step-by-step explanation:
Answer:
Step-by-step explanation:150 libras de comida
Answer:
-3x+3
Step-by-step explanation:
ion like workin it out but dere you go
