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Imagine watching a beautiful sunset, seeing the tide come in, or feeling the breeze on a warm summer day. These gifts from nature tend to make our days, weeks, and vacations even better. There are also some not-so-friendly natural phenomena that can occur, such as thunderstorms, earthquakes, and volcanic eruptions. These are less desirable, as they can not only ruin a planned activity but may also cause damage or physical harm.
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B i saw it from another site
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i think it's D. Governments should play a major role in ulating their economies.
Answer:
a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.
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