What is the biggest disadvantage of using nuclear power to produce electricity? A. Nuclear fission releases more air pollution than burning coal.
B. Nuclear fission produces less energy than burning coal or oil.
C. Nuclear waste must be safely stored for many years.
D. Nuclear waste must be incinerated.

Animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. reactivate d) a dog is getting hot in the sunlight, so he moves to a shaded area.

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?

Why don't you see your reflection in water with waves or repples