Answer:
c lower oxygen levels
Explanation:
the higher up the person is the closer to the atmosphere so there is less oxygen
Plant Characteristics. Plants are autotrophs; they produce their own food. They do so via photosynthesis, which is the process of making nutrients such as sugars from light energy and carbon dioxide.
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Science locates necessary info about how the universe works. Engineering invents practical devices and systems using the knowledge learned by science. Technology is the collection of <span>products of engineering that can be used to solve problems and perform useful </span><span>tasks.</span>
Scientists are helping to improve understanding of how rocks in Earth's hot, deep interior enable the motions of tectonic plates, which regulate the water cycle that is critical for a habitable planet.
