I believe the correct answer is acid rain.
Answer:
Double fertilization involves two sperm cells; one fertilizes the egg cell to form the zygote, while the other fuses with the two polar nuclei that form the endosperm. After fertilization, the fertilized ovule forms the seed while the tissues of the ovary become the fruit.
I think that b is the correct
The answer is A. Gravity pulls down on all parts of a plant.
