Author Question: Together which two gases make up 99 of Jupiter's atmosphere? A) Ammonia and methane B) Water ... (Read 45 times)

krzymel · **on:** Jul 27, 2018

Together which two gases make up 99 of Jupiter's atmosphere?

A) Ammonia and methane
B) Water vapor and methane
C) Helium and ammonia
D) Hydrogen and ammonia
E) Hydrogen and helium

Question 2

Roughly how many stars are in the Milky Way Galaxy?

A) 1 billion
B) 100 billion
C) 10 billion
D) 100 million
E) 100 trillion