UNIVERSE
METEORITES
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
a small body of ice, rock, and cosmic dust loosely packed together.
|
|
|
a large body of ice, rock, and cosmic dust loosely packed together.
|
|
|
a small body of ice, rock, and cosmic dust tightly packed together.
|
|
|
a minion catapulted through the air.
|
Detailed explanation-1: -A comet is a small body of ice, rock and cosmic dust loosely packed together. 2. Scientists refer to them as dirty snowballs.
Detailed explanation-2: -The coma is the freely escaping atmosphere around the nucleus that forms when the comet comes close to the Sun and the volatile ices sublimate, carrying with them dust particles that are intimately mixed with the frozen ices in the nucleus.
Detailed explanation-3: -The solid, core structure of a comet is known as the nucleus. Cometary nuclei are composed of an amalgamation of rock, dust, water ice, and frozen carbon dioxide, carbon monoxide, methane, and ammonia. As such, they are popularly described as “dirty snowballs” after Fred Whipple’s model.
Detailed explanation-4: -What is the difference? An asteroid is a rocky object that orbits the Sun. Asteroids are smaller than a planet, but they are larger than the pebble-size objects we call meteoroids. Comets are small icy dirtballs that orbit the Sun; comets are made of ice and dust while asteroids are made of rock).