The matter surrounding a comet’s core is vaporized and forms a very bright halo of gases and an enormous cloud of hydrogen envelopes the head of the comet.
A comet is a tiny, icy body in space that may be identified by its stunning tail when viewed from Earth. Only when a comet is getting close to sun, the ice and particles that make up the comet's core heat up and start to dissolve.
Therefore,the material encircling the centre vaporises and creates a very bright halo of gases and a sizable cloud of hydrogen. Most comets follow a solar orbit. The atmosphere of gas created by the ice melting is what causes the coma.
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Answer:
The new model came from more experiments and evidence.
Explanation:
As more research and better technology came out scientists were able to update to a more accurate model.
Answer:
c
Explanation:
active transport does move nutrients to areas with concentraition they do this and its called active transport because the body is activly moving it to a different part
