Identify the person who made the correct statement. Mike said petrified fossils are hard and heavy like rock.

Bobby said that petrified fossils have the same appearance as when they were alive.

Neither Mike nor Bobby is correct.
Mike is correct.
Bobby is correct.
Both Mike and Bobby are correct.

Both Mike and Bobby are correct.

Explanation:

Petrifcation can be defined as the process in which the organic material of the dead living being becomes fossil by the replacement of mineral deposition in the bony, hard material.

Thus although the body components gets decomposed wiped out due to this process. The body shape of the dead organism remains the same as that was in living.

Thus the statements made by Mike and Bobby both are correct. The fossils are hard and have the same appearance as when they were alive.

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).