You look at the organisms and compare them to the climates of where those organisms live today. Most often, this is done by analysis of pollen.
Answer and Explanation: Differences between members of the same species are called genetic variations. ... Each member of the species will have a slightly different combination of alleles thanks to genetic variation. Genetic variation is what makes individual humans so unique, even though we all belong to the same species.
500m
Just do 50 x 10 = 500
He will fall 50 m every 10 seconds so you have to do ratios.