According to the Bohr model of an atom, what happens when an electron moves from the second energy level to the third energy level and then back to the second energy level? Energy is absorbed and then stored in the atom. Energy is released and then absorbed to form an absorption line. Energy is absorbed and then released to form an emission line. Energy is released from the atom, and the outer level is weakened.

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative