Answer: The process of particles, which are sometimes called solutes, moving through a solution or gas from an area with a higher number of particles to an area with a lower number of particles. The areas are typically separated by a membrane.
THE ANSWER IS A!!!
 
        
             
        
        
        
An example for life for an animal and plant are that the both require foods to live. Animals hunt there own food but plants make there own due to photosynthesis. But they are similar because they both require food to continue living. There are many more characteristics but that is just one common one. 
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A decrease in the population of bears
        
             
        
        
        
Answer: 45 J
Explanation:
The formula for work is force x distance. 
W = fd
W = (30 N)(1.5 m)
W = 45 J
 
        
             
        
        
        
It affects the layers of the earth the ozone layer which protects us from the sun can't protect very good. Which increases the tempature here on earth.