Which of the following statements best explains why it is warmer at the equator than the North Pole? 1.The equator has a larger area than the North Pole.
2.The equator is closer to the Sun than the North Pole
3.The equator receives more direct sunlight than the North Pole.
4.The equator has more hours of daylight per year than the North Pole.

Fan egg cell containing the (n+1) number of chromosomes combines with a sperm cell containing the (n) number of chromosomes, what is the result of this union? a) all future somatic cells of the organism will contain the (2n + 1) number of chromosomes. b) all future somatic cells of the organism will contain the (2n - 1) number of chromosomes. c) only certain somatic cells of the organism will contain the (2n + 1) number of chromosomes. d) all future somatic cells of the organism will contain the normal diploid number of chromosomes.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil

What are potential sources of error in marta’s experiment