What is the main reason scientists have been puzzled about the green color of comets?
Why Don't Comets Ever Have a Green Tail?

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Physics, Science, Chemistry
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11th Grade - University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The green color is too faint to observe.
The green color is only visible from space.
The green color is only visible in the tails.
The green color is unstable and doesn't extend to the tails.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of a comet is the hard, icy core?
Nucleus
Coma
Dust tail
Ion tail
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What causes the ion tail of a comet to always point away from the sun?
The sun's solar wind
The sun's gravitational pull
The comet's speed
The sun's ultraviolet light
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What molecule is responsible for the green color in a comet's coma?
Water vapor
Methane
Dicarbon
Carbon monoxide
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why doesn't the green color from dicarbon reach the comet's tail?
Dicarbon is not present in comets.
Dicarbon is only formed in the tail.
Dicarbon is destroyed by UV light before it can reach the tail.
Dicarbon is too heavy to move to the tail.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the main finding of the 2021 experiment regarding dicarbon?
Dicarbon is stable in all environments.
Dicarbon can only be produced on Earth.
Dicarbon is quickly destroyed by UV light.
Dicarbon is not responsible for the green color.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is confirming scientific predictions important for future research?
It allows scientists to stop researching.
It provides confidence for future predictions.
It proves all past theories are correct.
It eliminates the need for further experiments.
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