I would say C. Land. The Earth's surface is 71% water. So the remaining would have to be land.
        
             
        
        
        
The answer is TRUE. happy i helped:)
        
                    
             
        
        
        
I know that question #4 is B.) Sun
        
             
        
        
        
Answer:
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You can usually tell the difference between a caldera and crater by studying <span>a feature's size and formation. In terms of size, a caldera is often relatively larger than ordinary craters. A caldera is so big that it causes explosive eruptions. In terms of formation, a caldera is a large depression caused when a magma chamber is emptied. A crater is a bowl-like formation at the top of volcanoes where lava comes out.</span>