That's not a question, but I guess I'll just vomit some information at you and hope I hit a target.
First of all, not true. Unless you're talking multiple choice kind of thing.
Room temperature is 20 degrees C / 68 degrees F / 293 degrees K
At this temperature, most elements are solids, but
Mercury and bromine are liquids
Hydrogen, helium, nitrogen, oxygen, flourine, neon, chlorine, argon, krypton, xenon, and radon are all gases.
Answer:Dark matter is invisible and does not emit electromagnetic radiation. Dark matter is part of a theory that hypothesis the existence of a counterpart to the particles we know in physics, in order to balance the universe that otherwise would be largely unbalanced right now. However, the theory right now is not yet proven.
Explanation:done
C. The increase in average global temperatures caused by greenhouse gases
Several things; don't use multiple patches, never take an ED medication (Erectile Dysfunction), if sign and symptoms including those of hypotensive reading, go to the emergency room.