How do landfills impact groundwater? A. litter B. Sharp metal and glass get in the soil.
C. Liquids leak into the ground.
D. Landfills do not impact groundwater.

What role do bacteria play in the carbon cycle

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Which label correctly identifies what x represents in the concept map?