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发帖数: 1443 | 3 今天学了点新知识，和大家分享：
Reflection, Refraction, and Color
The uppermost, sunlit layer of the ocean where 70 percent of the entire
amount of photosynthesis in the world takes place is called the euphotic
zone. It generally extends to a depth of 100 meters (330 feet). Below this
is the disphotic zone, between 100 and 1,000 meters (330 and 3,300 feet)
deep, which is dimly lit. Some animals are able to survive here, but no
plants. Although the amount of light is measurable at this range of depths,
there is ... 阅读全帖 |
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