1.
IS A PART OF AN ATOM WITH NO ELECTRICAL CHARGE
2.
IS ANY KIND OF HAMFUL FOREIGN MATTER IN A SUBSTANCE SUCH AS AIR OR WATER
4.
IS A PASALTWATER BODY OF WATER THAT COVERS A VERY LARGE AREA
5.
IS THE PROCESS OF TURNING AROUND A CENTRAL POINT
6.
IS A UNIT THAT MEASURES THE AMOUNT OF A SUBSTANCE, EXPRESSED IN GRAMS
