Which example describes a use for gemstones?
fabrics
plastics
drill bits
paper clips

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

How have the greenhouse gasses increased from the year 2000 to 2018

Ab c or d ? i’m not sure what the answer is