Question

1. choose the best answer.

a space object with a clear orbit does not orbit anything else and _____.
○ does not have other objects in its orbit
○ has no moons
○ rotates in less than one earth day
○ has a perfectly circular orbit

1. choose the best answer.

_____ are smaller round bodies that orbit the sun but have not cleared their orbit of other objects.
○ ore
○ planetoids
○ dwarf planets
○ spheroids

Explanation:

Question 10

To determine the answer, we analyze the concept of a space object with a clear orbit. A key characteristic of such an object (like a planet) is that it has cleared its orbit, meaning it does not have other objects in its orbit. The other options are incorrect: having no moons is not related to orbit clearing, rotation period doesn't define orbit clearing, and orbits are typically elliptical, not perfectly circular.

We recall the definition of celestial bodies. Dwarf planets are round bodies orbiting the sun that have not cleared their orbit of other objects (unlike planets). Ore is a mineral deposit, planetoids are similar to asteroids, and spheroids are a shape, not a celestial body category for this context.

Answer:

A. does not have other objects in its orbit

Question 11