Answer:The pressure of Mercury = 588,600Pa
Explanation:
The pressure of Mercury is given as 
 p=h x ρ x g 
Where h =height= 20 dm 
changing to meters
 10 decimeters (dm) =1 meter
20dm  =2 meter, 2m
ρ  is the density =30000-kg/m³
 g , gravity = 9.81-m/s²   
 
 Pressure =  2.0m x 30000-kg/m³ x 9.81-m/s²
588,600 kg.m/  s²/m² =588,600 N/m²
The pressure of Mercury=588,600Pa
 
        
             
        
        
        
Answer: 
A & B but if you must pick one therefore pick A
        
             
        
        
        
 well <span>It's because sunlight hits the equator more directly throughout the whole year. Sun equals life. so therefore the equator have more vegetation and and warmer climate and thus it has more life than Canada which is at higher latitudes where it is cold most for a large part of the year.</span>