How are light-years used to measure distances and sizes in the universe? O
A They provide information about time as well as distance and size.
B. They provide more accuracy than using other units of distance and size.
O
C. They provide smaller numbers to work with when measuring distances and sizes in the universe
D. They provide easy conversion into scientific notation, unlike other units of distance and size.

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Explanation:

A light-year is how astronomers measure distance in space. It's defined by how far a beam of light travels in one year – a distance of six trillion miles. Think of it as the bigger, badder cousin of the inch, the mile, the kilometer, and the furlong.

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explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

the movie was based there, and all the animals and characters are native.

~courtney