The answer is In the last trimester of pregnancy. While the senses
of the fetus start to develop in the 8th week, the different sense mature
at different stages. Vision is the last sense to mature. After the 26th
week, after the eyelids of the fetus have
fully developed, the fetus begins to blink (even experience REM while involves rapid
eyelid movements ). 
 
        
             
        
        
        
False, they are inexhaustible. If we were to use the resource as much as possible, it would exhaust and not be able to be used again.
        
             
        
        
        
Lunar eclipses are more wildly visible because Earth casts a much larger shadow on the moon during a lunar eclipse than the moon casts on Earth during a solar eclipse. As a result, you are more likely to see a lunar eclipse than a solar!. ;) 
        
             
        
        
        
Oceans act as conveyor belts of cold and warm water, <span>sending heat toward the polar regions and helping tropical areas cool off.
helps distribute heat around the globe
stores solar radiation</span>