<span>A. the measure of the acidity or alkalinity of soil Alkalinity is the name given to the quantitative capacity of an aqueous solution to neutralize an acid.</span>
The answer is fertilization.
Fertilization is the process in which two haploid gametes fuse to create one diploid cell. <span>In this process, male sperm fuses with female egg which creates a zygote. Since they are haploid (n), after fertilization, they will create the zygote which contains chromosomes from the sperm and chromosomes from the egg. The zygote, thus, has two sets of chromosomes, so it is diploid (2n).</span>
The answer is C. Photosynthesis Reaction. Hopes this helps :D
