Awave is produced from a vibrating string on a violin. two observers are standing 20 m and 40 m away from the musician. the observer who is farther away states that the violin sounds quiet, but the other observer disagrees. what best explains the different experiences of the two observers?

the energy of the sound wave increased as it moved away from the source.

the energy of the sound wave remained the same as it moved away from the source.

the energy of the sound wave decreased as it moved away from the source.

the energy of the sound wave increased then decreased as it moved away from the source.

it decreased as it moved away from the source

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."    

b is dominant over the allele for the white fur.