The answer is C. Isotopes.
Isotopes are defined as two substances that have the same number of protons and electrons, but a different number of neutrons, and therefore a different atomic mass. For example, carbon-12 and carbon-14 are isotopes of each other.
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1) Substances ( Solid<span>, Liquid, Gases ) which produce vapors will </span>burn<span> with </span>flame<span>. ... A yellow </span>flame<span> is produced during incomplete combustion of a substance. In Kerosene stove if yellow </span>flame<span> is observed then it indicates the incomplete combustion which may be due to the insufficient supply of oxygen gas. is it from researching so good luck :D </span>
Answer:
A. The lens spreads light.
Explanation:
The convex lens will converge the light that passes through it. The direction of light will be bend to be closer to the middle point. This is the lens used for the eyeglass that treat people with hypermetropia. That is why the convex lens also called a converging lens or a plus lens. The strength of the convex lens depends on its focal length, index of the material used, and the radius of curvature.
Volatile organic solvents consists of variety of chemical gases which are emitted in form of solid or liquids.
Everyday household products also emit these compounds which includes wax, paints which are applied on walls of the house.
These compounds are called as volatile substance because they have higher vapour pressure, and lower boiling points than as compared to the other compounds.
Common emissions sources of VOCs include dry cleaners; auto body shops; cars, trucks, and buses etc.
Volatile organic solvents play a vital role in the creation of ground-level ozone. Ground-level ozone can irritate the eyes, nose, and throat, and can aggravate asthma and other lung diseases, including bronchitis.
To know more about Ozone, refer to this link:
brainly.com/question/14330630
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