Horatio is studying an abandoned farm in his community. the land of the farm once supported fields of corn, beans, and spinach, as well as pastures for cattle and sheep. today, the farmland is covered in a variety of grasses, shrubs, and small trees, and is home to rabbits, gophers, and other small animals. the evidence most strongly supports which of the following conclusions? a. the farmland is undergoing primary succession, which eventually will restore the original climax community. b. the farmland is undergoing secondary succession, which eventually will restore the original climax community. c. the farmland is undergoing secondary succession, which may or may not restore the original climax community. d. the farmland has undergone primary succession, and is now a stable climax community.

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."    

answeranovulation;