When we say that the Sun is a ball of plasma, we mean that ...

[xclash]

When we say that the Sun is a ball of plasma, we mean that ________.
 
  A) the Sun is made of material that acts like a liquid acts on Earth
  B) the Sun is roughly the same color as blood
  C) the Sun is made of atoms and molecules
  D) the Sun consists of gas in which many or most of the atoms are ionized (missing electrons)

Question 2

Weakly interacting particles (WIMPs) interact with other particles using gravity and the weak nuclear force. They cannot emit or absorb light. Therefore, how does the behavior of hydrogen and helium gas differ from that of WIMPs?
 
  A) Hydrogen and helium gas affects particles that we can see.
  B) Hydrogen and helium gas interacts with other forms of matter gravitationally.
  C) Hydrogen and helium gas can cool by radiating energy.

[yeungji]

Answer to Question 1

D

Answer to Question 2

C

[xclash]

TYSM

[bdobbins]

Gracias!