They are inversely related. As the distance increases the magnetic attraction decreases and when the distance decreases the magnetic attraction increases
Gel electrophoresis is to run the sample on DNA restricted enzymes are to cut the DNA in length.
Answer is A
The answer should be C, a plain.
Contour lines are used to indicate the height of the land in a map. The closer the contour lines are, the steeper the land will be, as the height of the land changes rapidly.
Therefore, if the contour lines are drawn far apart from each other, most likely the height of the land doesn't changes that much, it remains the same for a larger area, which means a plain should be the answer, as its height doesn't change as much as the other hills, cliff, or valley does.
