Question

Question 12 (1 point)

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Which of the following best describes terrestrial planets?

Question 12 options:

a)

Planets made mostly of gases

b)

Planets made of heavier elements

c)

Planets that have no solid surface

d)

Planets in the outer regions of the solar system

Answer 1

They are made of mostly rock

Step-by-step explanation:

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars. -Google

Answer 2

Answer: b) Planets made of heavier elements

Step-by-step explanation:

The terrestrial planets are the planets, which are made up of heavy metals and rocks. These have a hard surface. These planets have molten metal core which is heavy. These planets have few moons and topological features such as volcanoes, craters and valleys.

All these terrestrial planets have typically the same type of structure that is the metallic core in the center that is composed of iron, and surrounded by the layer of silicate mantle.

Thus on the basis of the above description, the planets made of heavier elements is the correct option.