题目
单项选择题
What powers our planet and our lives?
选项
A.Radiant energy from the Sun.
B.Shorter wavelengths of gamma rays, X-rays, and ultraviolet.
C.Utilities and oil companies.
D.Energy derived from inside Earth.
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思路分析
This question asks about the primary source of power for our planet and our lives.
Option 1: Radiant energy from the Sun. This is the main energy source driving Earth's climate, weather, and supporting life through photosynthesis; it powers virtually all......Login to view full explanation登录即可查看完整答案
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