What is the composition of the clouds of Venus?
A) Water, like Earth's clouds
B) Frozen carbon dioxide, as on Mars
C) A combination of ammonia and methane, like Uranus
D) Sulfur and sulfuric acid droplets
E) Hydrogen sulfide and ammonia
Question 2
Process of Science: Can we ever really know what happens within the event horizon of a black hole?
What will be an ideal response?