Answer:
B. Proteins
Explanation:
Salivary amylase is an enzyme that starts the breakdown of starch in the mouth. Gastric glands of the stomach secrete gastric juice, which contains HCl to kill bacteria and denatures proteins, intrinsic factors, and the enzyme pepsin. The chief cells of gastric glands secrete pepsinogen (an inactive form of pepsin).
Pepsin begins the digestion of proteins in the stomach. It breaks down certain peptide bonds between amino acids and thereby, breaks down protein chain into smaller peptide fragments. Pepsin requires a very acidic environment of the stomach (pH 2) and becomes inactive at a higher pH.
The citrus fruits are a good source of vitamin C.
The dark green leafy vegetables also have many important vitamins and minerals. They are an abundant source of vitamin C, A, K as well as (folate vitamin B9). Other than these, they also provide iron and calcium. The dark green leafy vegetables are also a great source of fibres. But, they are not very good source of ZINC or selenium.
hence, the correct answer is option A. Vitamin
Sycamore trees (Platanus occidentalis) make handsome shade trees for large landscapes.

Answer:
Science fiction is a genre whose content is based on supposed scientific achievements that could be achieved in the future. This makes science fiction different from the fantastic genre, where situations and characters are the result of imagination.
Explanation:
Among its characteristics we can specify:
-Eminently narrative, although there are also rare forays into the world of poetry.
-Interested in the scientific and technological discourse.
-They have a certain margin of technological prediction, attributable to this genre inquires into the dreams and fantasies of humanity that science is determined to make reality.
Some examples:
-I'm a legend of Robert Matheson.
-Neuromancer of William Gibson.
<span>The sediment is compacted by heat and pressure, causing it to because hard rock!</span>