Fossil fuels are hydrocarbons, meaning they are composed primarily of carbon and hydrogen. When fossil fuels are burned, carbon dioxide (CO 2) and water (H 2 O) are the principle chemical products, formed from the reactants carbon and hydrogen in the fuel and oxygen (O 2) in the air.
Yes: Visine has a vasoconstrictor medication that makes the blood vessels of the eye constrict to decrease the appearance of redness of the eyes. This decreases blood flow to the conjunctivae of the eyes.
Tetrahydrozoline is the ingredient in Visine that causes a person to become ill. It is found in many over-the-counter eye drops and nasal sprays, and its main purpose is the constriction of blood vessels. Poisoning happens when someone swallows this product, which is intended only for topical use.