A comet is a lump of rock and ice. Spacecraft have flown by comets. A comet only has a tail when it is near the sun. Most comets come from the Kuiper belt. A comet has actually been witnessed hitting a planet. Most comets have short orbital periods.
A comet is a tiny, frozen entity in the Solar System that heats up and starts to emit gases as it approaches the Sun. This process is known as outgassing. This results in an apparent atmosphere or coma, and occasionally a tail as well. These occurrences are caused by how the solar wind and solar radiation interact with the comet's nucleus.
The size of comet nuclei varies between a few hundred meters and tens of kilometers, and they are made up of loose clumps of ice, dust, and tiny rocky particles. A comet's orbit is typically very eccentric and elliptical, and its orbital period can range from a few years to possibly millions of years.
Learn more about Kuiper Belt here:
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The correct answer is true
True The U.S. stayed neutral until japan bombed pearl harbor. Once Japan Bombed us we joined the war
True i pretty sure but ya know
"The long life expectancy that developed in Japan" is the one among the following choices given in the question that <span>is not a result of the geographic proximity of two or more groups of people. The correct option among all the options that are given in the question is the first option or option "a".</span>