Why is it important to preserve fossils?

Fossils are used to determine how many meteors hit Earth.
Fossils are used to determine future climate.
Fossils provide evidence of the conditions of Earth a long time ago.
Fossils are used to help determine the age of the Sun.

Fossils provide evidence of the conditions of Earth a long time ago.

Explanation:

A fossil is defined as "the remains or impression of a prehistoric organism preserved in petrified form or as a mold or cast in rock." The remains of a prehistoric organism can provide evidence of conditions on Earth from a long time ago.

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion