What part of the ocean floor does the center split represet

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

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car