<h2><u><em>Answer:</em></u></h2><h2><u><em>B.winter solstice</em></u></h2><h2><u><em>also called the great conjunction(a.k.a the Christmas star)</em></u></h2><h2><u><em>Explanation:</em></u></h2><h2><u><em>the winter solstice is when the two big planets(Saturn and Jupiter) cross and make a double planet but not really and only happens every 30 or 60 years</em></u></h2><h2><u><em>and only happens on December 21 or 22</em></u></h2><h2><u><em>and is shortest day but longest night</em></u></h2><h2><u><em>brainliest plzs</em></u></h2>
 
        
             
        
        
        
A recessive trait is observed when an organism has 2 recessive genetic factors.
        
             
        
        
        
Answer:
Atmospheric oxygen is too reactive
Explanation:
 
        
             
        
        
        
A scientist who studies plants is called a botanist.
        
                    
             
        
        
        
Answer:
4 km
Explanation:
There are 1.60934 km in a mile
2.5 m * 1.60934 km = 4 km