Activity
many farmers and gardeners compost their plant and animal waste. the living material naturally decays in compost bins,
forming a dirt-like substance that's rich in nutrients. the next season, farmers use this substance as a natural fertilizer for
their crops.
a biology student has grown tomato plants for several years. until now, he used an artificial fertilizer formulated for
tomato plants. this fertilizer caused his plants to grow faster and taller than they grew in unfertilized soil. the student
wants to know whether using natural compost will cause his tomato plants to grow faster and taller than his artificial
ffertilizer
answer the following questions to plan an investigation using the steps of the scientific method and the student find
the answer to this question.
part b

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.

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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."