Africa major areas are almost completely void of human life . some areas is the desert with forest
        
                    
             
        
        
        
4. "Tropical" is the one among the following choices given in the question that is the<span> predominant climate of South America. The correct option among all the options given is the fourth option.
5. "Albatross" is the one bird species among the following that </span><span>is found almost exclusively in the Southern Hemisphere. The correct option among all the options given is the third option.</span>
        
                    
             
        
        
        
<u>Answer:</u>
<em>Anytime observations need to be clarified. When an unusual condition need to be shown for later reference.</em>
<u>Explanation:</u>
 Instead of just recording the data the is sometimes important to be sketched out as the data observed is needed to be clarified and also sometimes there is an unusual condition that occurs and hence, it is important to sketch it so that it can be used for later reference. 
<em>Therefore, when we are aware of the situation we need not sketch the data.</em>
 
        
             
        
        
        
I think it’s evaporation of moisture is greatest where it is cool and dry.