The completed sentence with the correct answer is; How does the first sentence in the paragraph help to introduce the main idea. The correct answer is B.
Answer:
The chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production. ... Free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone.
D.All of the Above
How has selective breeding changed the wolf into the many different breeds of domestic dogs that we know today?
a. Animals with the traits that were desired were bred to each other.
b. As civilization changed, so did our need and desire for different types of dogs.
c. The fear of humans was bred out of wild wolves.
d. All of the above.
Potassium and can be obtained by eating avocados, acorn squash, sweet potato, spinach etc..
Astronomy is the scientific study of celestial objects. (Such as stars, planets, comets, and galaxies)
