In converting a number with the unit of meter into kilometer we must use the conversion factor 1 km per 1000 meters.This is because in 1 kilometer there are 1000 meters and then the unit to be converted is already in meter so we need to divide it for us to convert.
        
             
        
        
        
1)  Atmospheric Carbon Dioxide.
Trees are an important part to this planet because they take the carbon dioxide out of the air and convert it to oxygen.  When deforestation occurs, there are less trees to do this, resulting in more carbon dioxide in the air.
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