1. Does warm air rise or sink? Does cold air rise or sink? 2. Air pressure can be high or low. Does air flow from low to high pressure or from high to low pressure?

3. Which is heavier—warm air or cold air?

4. Which has higher air pressure—warm air or cold air? How do you know?

5. Global circulation cells occur because of uneven heat distribution and the earth's rotation. What do we call the effect of the earth's rotation on air circulation?

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

Will give ! what are the advantages and disadvantages of nuclear power? check all that apply. one advantage of nuclear energy is that it does not produce carbon dioxide emissions. storage of nuclear waste is a short-term problem associated with nuclear energy. the problem with uranium mining is that a large quantity of uranium must be extracted to meet energy needs because the energy release from uranium fission is so low. safe operation of a nuclear power plant can be jeopardized by a human mistake.

Adilute aqueous potassium nitrate solution is