Answer:
Land is the least effective because most disasters that occur are caused by either air or water...air pollution or flood.
 
        
             
        
        
        
Pull factors are reasons why groups of people leave a particular place.
        
             
        
        
        
Answer:
V. Moderate 
IV–V falls within the range of 
4.0–4.9 so we put at 4.9
Explanation:
This V. Moderate earthquake is the type felt by nearly everyone, with many people awakened. Some dishes and windows are usually broken, and unstable objects are overturned such as books in a bookcase. Pendulum clocks may also stop.	
 
        
             
        
        
        
Answer:
The Tropics receive more direct sunlight, resulting in warmer climates. The Poles receive  almost no direct sunlight, resulting in a colder climate.
Explanation:
The tropics and the poles are two totally different regions on Earth. The differences can be seen in pretty much everything, from climate conditions to soil, geography, biosphere, precipitation, human activity, etc. One of the most noticeable and most important differences between the two is definitely the angle at which the sunlight falls.
The tropics are the region that receives sunlight at direct or close to direct angle all year round. This means highly concentrated sunlight and warm or hot weather conditions all year round. The poles are the region that receives sunlight at the lowest angle, having it constantly for around half a year, and then lacking it for half a year. This means very dispersed sunlight which can not warm up the surface and air, so the weather conditions are very cold all year round.