Random question?

Which metric unit is used to describe an object's length?

Random question?

According to the periodic table, all of the following are metals except

Random question?

The Heliocentric Theory, as supported by Copernicus, revolutionized scientific theories regarding

Random question?
The crude oil extracted today was formed millions of years ago from the fossilized remains of algae and other tiny marine organisms. Most parts of the organisms decomposed soon after they died. Which biomolecules decomposed more slowly and became the basis of crude oil?