Which phrase describes a dipole moment? (1 point) the separation of positive and negative charges the vibration of a molecule the imbalance of positive and negative charges the releasing of energy from a molecule Which statement best summarizes the presence of greenhouse gases in the atmosphere? (1 point) The atmosphere is mostly non-greenhouse gases, so the small amount of greenhouse gases have little impact on climate The atmosphere has recently changed and is mostly greenhouse gases, but they have little impact on climate The atmosphere is mostly non-greenhouse gases, but the small amount of greenhouse gases have a large impact on climate The atmosphere has recently changed and is mostly greenhouse gases, which have a large impact on climate Which observed consequence is due to increased production of greenhouse gases? (1 point) more glaciers global cooling melted ice caps fewer floods Are greenhouse gases and the greenhouse effect ever beneficial? Why or why not? (1 point) No, greenhouse gases are a result of air pollution, which is detrimental to the environment. Yes, industries need to consume greenhouse gases to help people keep their standard of living No, too many greenhouse gases cause the planet to retain too much heat. Yes, the greenhouse effect keeps the planet warm enough to support life. Which molecule acts as a greenhouse gas? (1 point) nitric oxide (NO) oxygen (0₂) nitrous oxide (N₂O) nitrogen (N₂)​