Comets | MCQs

Explanation

• Comets: huge masses of snow and rocks that revolve around the Sun in orbits.
• Comets: have huge glowing tails.
• Halley's Comet was last seen in: 1986
• Halley's Comet will be next seen in: 2062

Explanation

• Meteoroids are small particles from space that enter the Earth's atmosphere.
• It producing a bright streak of light, commonly known as a shooting star or meteor.
• If a meteoroid survives its passage through the atmosphere and lands on Earth, it is called a meteorite.

Explanation

• Meteoroids are small rocky particles that float in outer space.
• They can range in size from a grain of sand to a boulder.
• When a meteoroid enters Earth's atmosphere, it becomes a meteor (shooting star).
• It can potentially land on Earth as a meteorite.

Explanation

Comets are icy bodies that orbit the Sun, and they appear as a long hair-like strand due to their tail of gas and dust.

They consist of three main parts:

1. Nucleus: The central, solid part of the comet.
2. Coma: The cloud of gas and dust surrounding the nucleus.
3. Tail: The long, trailing cloud of gas and dust that follows the comet as it orbits the Sun.

Explanation

• Comets are the small broken pieces of ice, dust, and gases found beyond the orbits of Neptune and Pluto in the solar system.
• Comets originate from regions such as the Kuiper Belt and the Oort Cloud, where they are composed of volatile substances like ice and dust.

Explanation

• The nucleus is the solid, central part of a comet, composed of ice and rock.
• It is the source of the comet's activity, including the tail of gas and dust that forms when the comet approaches the Sun.

Explanation

• Comets are often referred to as "dirty snowballs" due to their composition.
• Comets are characterized by their highly elliptical orbits and bright tails of gas and dust that form when they approach the Sun.