Based on the fossil records, what is true concerning populations of organisms that lived on
Earth?
A. Most organisms are found in the earliest rock
layers.
В.
Most organisms stayed the same over time.
C. Most organisms that lived on Earth are
extinct.

Please help me

The diagin dilutepage 6 of 12a6a5(a)fluorine, chlorine, bromine and iodine are placed in the same group of theperiodic table.state the common name used to describe elements in this group.(i)state the group in which the elements are placed and explain whythey are placed in that group.(ii)which of the above named elements is a solid at roomtemperature and pressure?