Science differs from other disciplines, such as history and the arts, because science relies on a. facts. b. testing explanations. c. observations. d. theories.

B. testing explanations

Explanation:

Aristotle defines science as "knowledge of causes by causes. It is demonstrative knowledge".

Science consists of three components: observation, experimentation and laws. It aims at the union between theoretical knowledge, practice and technique. It does not use assumptions, but verification after applying the scientific method.

In short, science is the knowledge that explains phenomena according to laws that have been verified by experimental methods. Accordingly, we can say that what differs science from other subjects such as arts and history is that science depends on testing explanations.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."