How to know when a line spectrum is produced. A line spectrum is produced when the electron moves from one energy level ___. Fill in the blank PLEASE HELP I WILL GIVE BRAINLEST AND GIVE 5 STAR FOR FIRST RIGHT ANSWER

A line spectrum is produced when the electron moves from one energy level to a lower energy level.

Explanation:

...from one energy level to a lower energy level

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water pollution kills aquatic life. aquatic life includes algae and other plant life that use photosynthesis. photosynthesis takes   c02 out of the air.  

c02is a greenhouse gas.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.