Not to bad did you do by your self
        
                    
             
        
        
        
Answer:
Not sure but I think it is False
Explanation:
 
        
             
        
        
        
Answer:
Weather balloons float at about 24 miles above earths surface, it is also above the ozone layer and is in the middle of the stratosphere
 
        
             
        
        
        
Answer: Harappan civilization forms an important landmark in the prehistory of the Indian subcontinent. 
Explanation: Harappan civilization forms an important landmark in the prehistory of the Indian subcontinent. The civilization offers an excellent example to the modern world in various ways. Their expertise in town planning, water management and harvesting systems as well as drainage mechanism is unparalleled.
 
        
             
        
        
        
Answer:
The correct answer is option C.                                           
        
Knowledge-centered and skill-centered approaches should be balanced.