Question

Why are fossile considered important in the study of revolution? explain two ways by which age of fossil can be estimated

Answer 1

fossils are considered important in the study of evolution because they act as a connecting link between between evolution for example archeoptryx act as a connecting link between transformation of reptiles into birds.
age of fossil can be estimated by carbon dating method 
and relative method that is fossil found at top is relatively younger than those found at alower level