What items repel electric charge

Which position represents spring in the southern hemisphere? a) b) c) d)

Asolid that forms and separates from a liquid mixture is called

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.