Answer:
A. Coma of a comet -Haze surrounding a nucleus
B. Comet tail -Created by solar wind.
C. Oort cloud -Hypothetical sphere around the solar system
Explanation:
A comet is formed of rock, dust and frozen gases. It is sometimes referred as dirty snow ball. Comets are generally found in Kuiper belt and Oort cloud. These lie in the outskirts of the solar system. Oort cloud is a Hypothetical sphere which surrounds the solar system. It has extremely low temperature.
A comet is three parts:
Nucleus- It is core of the the comet. It is made of rocks and dust and frozen gases.
Coma - it is the atmosphere of the comet. It is composed of sublimated gases when comet enters the solar system. coma is held by gravity around the nucleus. It appears like a Haze around the core.
Comet Tail - When comet nears the Sun, the coma expands and extends backwards due to solar wind. It is composed of dust and gases. The tail of a comet can extend millions of kilometers and can be observed using a telescope form the the Earth.
