3. describe two ways that humans influence the cycling of matter in ecosystems.

water, carbon and nitrogen

Explanation:

All of the materials an organism takes in are returned to the ecosystem, while the organism lives or after it dies. The movement of matter through the living and nonliving parts of an ecosystem is a continuous process, a cycle. ... Three of the most important cycles in ecosystems involve water, carbon, and nitrogen.

the transfer of energy between two molecules spaced just nanometers apart plays a key role in many technologies, including photovoltaics, quantum information systems, lighting, and sensors, as well as in biophysics to measure nanometer distances and in photosynthesis. but an open question in this area is what effect, if any, the surrounding photonic environment has on this nanoscale energy transfer. by designing and performing a carefully controlled experiment to answer this question, scientists have settled the debate and found clues to improving the efficiency of many of the technologies that rely on this process.

explanation:

plant because they survive by water, sunlight, ex.

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