Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet.

the descriptions are:

the frozen part of the comet

the atmosphere of gases and dust formed when the nucleus vaporizes

tail made of ions that appears to point away from the comet's orbit

tail made of small, solid dust particles

Comets are celestial bodies constituted by ice, dust and rocks that orbit around the Sun, after having been altered by the Oort cloud; following different trajectories that can be highly eccentric elliptical (periodic trajectories), parabolic or hyperbolic.

One of the main characteristics of a comet is that it travels quite fast, on its way around the Sun and has a long tail.  

It should be noted that comets in fact have two tails:

1. The first tail is composed of gas and dust that forms when the comet is approaching the Sun, then the solar radiation causes part of the ice that forms the nucleus to quickly turn into gas in a process called sublimation.

2. The second tail forms when the comet approaches even closer to the Sun, the solar wind hits the coma, causing the lighter particles to move away from the comet's nucleus and creating an ion tail. This tail always has opposite direction to sun (due to the radiation pressure of sunlight).

Knowing this, let’s   fill each box with the required description:

1st box: Tail made of ions that appears to point away from the comet's orbit

2nd box: Tail made of small, solid dust particles

3rd box: The frozen part of the comet

the correct answers are:

a - pacific plate;

it is the biggest oceanic tectonic plate. surrounded on all sides by continental tectonic plates, it is submerging and gradually becoming smaller and smaller.

b - north american plate;

huge continental plate, occupying big portion of the northern hemisphere.

c -eurasian plate;

alongside the north american plate, it is one of the two dominant continental plates in the northern hemisphere.

d - indian plate;

a small continental plate, that has been part of gondwanaland initially, but after the break up of it, moved towards northeast and pushed into the eurasian plate that was once part of laurasia.