Answer: Drugs, ultraviolet light and other chemicals are all potential enemies of DNA.
Explanation:
The true statement is that it evidences the dramatic negative results every time when the poles of the magnet get reversed.
Option D
<u>EXPLANATION: </u>
There are two poles: North and South Pole in Earth's magnetic field. When lava erupts at mid-ocean ridge, it cools and becomes a hard rock. During this process of cooling, the rock becomes magnetised.
Scientists have discovered that the magnetic field of Earth has been reversed in direction hundreds of times, which means that the polarity of North pole and South pole reverses.
Due to this reversal, a pattern of magnetic stripes is created in symmetry on both sides of the mid-ocean ridges.
I believe you might be missing a portion of the problem/question.
Answer: you first give the mouth to mouth
Explanation: then you do chest compressions
The correct answer is C. e trend toward a sporophyte-dominated life cycle