The right answer is the option a, part of a binary system<span>. A binary system is two astronomical bodies which orbit one around each other due to the gravitational atraction that they mutually exert on each other. . On the other hand, Sun is a yellow star, a main sequence star and of average absolute magnitude. </span>
        
                    
             
        
        
        
The answer would be C. Energy is used through the food chain so energy always decreases. Population size would commonly decrease according to the  pyramid of food chain but since there's no answer for that, C would be the most suitable
        
                    
             
        
        
        
Answer:
windy, cold, long, constant(doesn't set), warmer
Explanation:
 
        
             
        
        
        
The four mechanisms are as follows:
1) Orographic lifting: Air is forced to rise over a mountainous barrier
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2) Frontal wedging: Warmer, less dense air is forced over cooler, denser air along a front 
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<span>3) Convergence: Pileup of horizontal air flow resulting in an upward flow
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<span>4) Localized convective lifting: Unequal surface heating causes localized pockets of air to rise because of their buoyancy. </span><span />