Hydrogen (H) was first, followed by helium (He).
I think it is the gas and the heat in it
Answer:
Gold has been used to make ornamental objects and jewelry for thousands of years. Gold nuggets found in a stream are very easy to work and were probably one of the first metals used by humans. Today, most of the gold that is newly mined or recycled is used in the manufacture of jewelry.
Answer:
the answer is 0.00201168 meters per second