We can see the Moon because it
A) emits visible light.
B) emits thermal radiation.
C) reflects infrared light.
D) reflects visible light.
E) glows through radioactive decay.
D) reflects visible light.
You might also like to view...
When total internal reflection happens at a plastic-air interface
A. half the light is refracted. B. half the light is reflected. C. light hits the interface from the air side. D. light hits the interface from the plastic side. E. the law of reflection ceases to hold.
Which model of the universe gives the youngest age for its present size and expansion rate?
A) a critical universe B) an accelerating universe C) a re-collapsing universe D) a coasting universe E) All models give the same age.
Which planet has a large moon with retrograde motion?
a. Jupiter b. Saturn c. Uranus d. Neptune
All the planets move about the Sun in randomly oriented orbits.
Answer the following statement true (T) or false (F)