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Question
Why does a comet make a bright trail in the night sky? (1 point)
Responses
A comet is made of ice, dust and gas that vaporize as the comet moves closer to the sun, leaving a trail.
A comet is made of ice, dust and gas that vaporize as the comet moves closer to the sun, leaving a trail.
A comet gives off light because of the mineral composition of the rocks from which the comet is formed.
A comet gives off light because of the mineral composition of the rocks from which the comet is formed.
A comet produces an optical illusion of a bright trail due to the layers of Earth’s atmosphere.
A comet produces an optical illusion of a bright trail due to the layers of Earth’s atmosphere.
A comet is made of rock, which burns and lights up as the comet moves faster in the atmosphere.
A comet is made of rock, which burns and lights up as the comet moves faster in the atmosphere.
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The correct response is:
A comet is made of ice, dust and gas that vaporize as the comet moves closer to the sun, leaving a trail.
The correct answer is:
A comet is made of ice, dust and gas that vaporize as the comet moves closer to the sun, leaving a trail.
The correct answer is: A comet is made of ice, dust and gas that vaporize as the comet moves closer to the sun, leaving a trail.
To get the answer, you can start by understanding what a comet is. A comet is a small celestial body made up of a nucleus (solid core), a coma (a cloud of gas and dust), and a tail. The nucleus is mostly composed of ice, dust, and gas, which are frozen substances.
As a comet approaches the sun, the heat causes the ice in the nucleus to vaporize, creating a glowing cloud of gas and dust around the nucleus, called the coma. The pressure from the solar wind also pushes the gas and dust away from the comet, forming a tail that points away from the sun.
This tail reflects sunlight, making it visible from Earth. The gas and dust in the tail also interact with the solar wind and the Earth's magnetic field, causing them to glow and emit light. This glowing trail is what we see as a bright trail in the night sky.
Therefore, the correct answer is that a comet makes a bright trail in the night sky because it is made of ice, dust, and gas that vaporize as the comet moves closer to the sun, leaving a trail.