Question 1: According to measurements made by the Wilkinson Microwave Anisotropy Probe (WMAP), which material is by far the most plentiful in the universe?
Correct Answer: dark energy
Question 2: The Response area, of dark matter causes baryonic gas and dust to clump.
Question 3: Which types of baryonic matter are most abundant in the universe? Select the two correct answers.
Correct Answers:
- helium
- hydrogen