When molecules are being transported opposite to the molecules concentration gradient. 
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Answer:
Afterimage.
Explanation:
An afterimage describes the continuation of a visual sensation after removal of the stimulus. For example, when you stare briefly at the sun and then look away from it, you may still perceive a spot of light although the stimulus (the sun) has been removed.
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One gets together with another and it happens then a child comes
        
                    
             
        
        
        
Answer: Plants
Explanation: Less solar radiation would mean less sunlight for photosynthesis which means that they won't get enough energy for survival and might die out.