a decrease in air temperature the appearance of shooting stars an decrease in atmospheric ozone the appearance of the Northern Lights
I gave my students this multiple choice question: Which of these will most likely result from small meteoroids entering the atmosphere of Earth?

Only one answer is correct among these 4 choices:
- a decrease in air temperature
- the appearance of shooting stars
- an decrease in atmospheric ozone
- the appearance of the Northern Lights

Could you tell me which one is correct?

the appearance of shooting stars