Answer:
A. an increase in the greenhouse effect
Explanation:
Carbon dioxide controls the amount of water vapor in the atmosphere and thus the size of the greenhouse effect.
The frontal lobe of the brain is not essential for driving a motor vehicle. The only time that the frontal lobe would be activated during driving would be when there is potential danger, for example a car swerving in front of you. The dorsal lateral prefrontal cortex is more essential for driving, as it is involved in judgment and decision making.
The answer is D. Lymphatic
Skin isn't included in the lymphatic system.
Elbows and knees would be the answer
C.Natural Selection would be the answer
