your answer is:
B. The angle of the slope.
The answer is A. Differentiation
The process is known as the greenhouse gasses effect
<span>The Cerebrum: The cerebrum or cortex is the largest part of the human brain, associated with higher brain function such as thought and action. The cerebral cortex is divided into four sections, called "lobes": the frontal lobe, parietal lobe, occipital lobe, and temporal lobe.</span>
The experimental group is the group you change from the normal. the fertilizer group is experimental