当前位置: X题卡 > 所有题目 > 题目详情

All the useful energy at the surface of the earth comes from the activity of the sun. The sun hea...

查看本题答案

你可能感兴趣的试题

gasoline  natural gas  atomic power  animal fat  
stored up by the plants  absorbed by the earth’ s atmosphere  stored up by the animals in the form of body fat  used for electric power  
one tenth  one millionth  all that comes from the surface of the sun  a very small portion  
stored by plants  turned into fuel  absorbed by the earth' s atmosphere  used for electric power  
plants  rain  coal, oil, and natural gas  inflammable substances  
plants  rain  coal, oil, and natural gas  inflammable substances  
one tenth  one millionth  all that comes from the surface of the sun  a very small portion  
fuels  waterpower  light  both A and B  
gasoline  natural gas  atomic power  animal fat  
plants  water  rock  creatures  
directly from the sun  from the sun' s activity  from energy stored by the sun  from radiation of the sun  
one tenth  one millionth  all that comes from the surface of the sun  a very small portion  
solar activity  all heat  all food  both B and C  
stored up by the plants  absorbed by the earth’ s atmosphere  stored up by the animals in the form of body fat  used for electric power  
rain  teal  water  light  
directly from the sun  from the sun' s activity  from energy stored by the sun  from radiation of the sun  
rain  teal  water  light  
plants  water  rock  creatures  
rain  teal  water  light  
solar activity  all heat  all food  both B and C