When liquid gold becomes a solid its particles get closer together which best describes what happened to the gold

In the process, the rearrangement of particles taking place in the gold signify a physical change.

Explanation:

A physical change refers to the one that modifies the form of a substance, however, it does not influence its composition. When liquid gold turns solid and its constituents come close to each other, it shows a physical change as in the given case, the liquid state is transformed into a solid-state and there is not influence taking place on the composition of gold.  

Further, in comparison to the liquid state, in solid-state, the particles come close to each other. Therefore, the rearrangement of particles in a physical change best illustrates the liquid gold turning solid and its particles getting close together.  

the real answer is b. scintillation counter

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."