They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.
        
             
        
        
        
Answer:
these are the worst ever
Tornado: clouds, strong wind, rain, hail.
Hurricane or cyclone: strong wind, heavy rain.
Blizzard: heavy snow, ice, cold temperatures.
Dust storm: strong winds, arid conditions.
Flood: heavy rainfall.
Hail storm: cold or warm temperatures, rain, ice.
Ice storm: freezing rain.
 
        
             
        
        
        
did you ever find out the answer
  
        
                    
             
        
        
        
Answer:
through increasing trade Brazil's long coastline helped the country to develop
 
        
                    
             
        
        
        
Answer:
Check Explanation.
Explanation:
In order to be able to answer this question effectively and efficiently we have to consider the Newton's law of Universal gravitation which is given by the mathematical representation below; 
Gravitational force, F = G (m1 × m2) / r^2.
Where G = Gravitational constant, m1 and m2 and the masses of body one and two respectively and r = distance. 
So, we can deduce that the mass(in form of kinetic energy) increase at large distance and this makes the speed to reduce.