Chemical and physical properties are used to help identify substances. A substance's chemical properties identify whether or not that substance reacts with another substance.

what am i trying to do? solve?

if you break down the data from the global footprint network, china exerts far more pressure on its ecosystems per capita than america in terms of crops, grazing, foresting, and fishing. but where america blows everybody out of the water is carbon emissions per capita

answer:

1,800

explanation:

4000 - 3,200 = 1,800

answer:

um why

explanation: