Which of the following is an example of how chemicals can help the
environment?
O A. Chemicals are used to clean soil to remove dangerous materials.
O
B. Chemicals are found in many places in a home.
C. Chemicals pollute water.
D. Chemicals are used to make plastic and other everyday materials.

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?