By far the most common elements in the Universe and in our solar system are ____________.
A)nitrogen and oxygen
B)iron and manganese
C)hydrogen and helium
D)hydrogen and oxygen

Question

Quizplus · Accepted Answer

Hydrogen and helium are the most common elements in the Universe and in our solar system. Nitrogen and oxygen are relatively rare, while iron and manganese are only abundant in certain types of stars and planetary bodies. Hydrogen makes up over 90% of the atoms in the Universe, while helium makes up most of the remaining 10%.

By Far the Most Common Elements in the Universe and in Our