The ozone layer is in the upper portion of this part of the earth's atmosphere.
A) ionosphere
B) mesosphere
C) stratosphere
D) troposphere

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Why do german shepherds shed so much

Which of the following is a common danger of commercial fishing?