B
Explanation
Sodium Fluoride
<span> Gemini will be visible almost 9 months, Other times it will be visible at night sometimes, due to the earths rotations only certain constellations are see able at one time. </span>
Answer:
C
Explanation:
A scientist who studies objects in the sky, including planets, galaxies, blackholes, and stars
Reactants. Reactants are the substances that are needed for a chemical reaction to occur. Without reactants there are no products.
Well there are three reasons
it drains into rivers, streams, etc. or
it seeps into soil and gather underground as ground-water
or
falls into high mountains and freeze and in the summer it will melt and flows into the rivers
