Answer:
sewage and peak of mountain
 
        
             
        
        
        
Answer:
the development of GPS and GIs technology helped the public transportation system in two ways: - First, it is easier for both drivers or passengers to locate the place that unfamiliar to them, which will reduce the cost and the time for travel.
 
        
             
        
        
        
That's the definition of "free fall".
We can never observe free-fall in our daily life on Earth. There's always 
at least one other force besides gravity acting on a falling body, because 
it's always falling through air.
        
                    
             
        
        
        
Plant cells are differentiated from the cells of other organisms by their cell walls, chloroplasts, and central vacuole. Chloroplasts are organelles that are crucial for plant cell function. These are the structures that carry out photosynthesis, using the energy from the sun to produce glucose
        
             
        
        
        
Mathematics and architecture are related, since, as with other arts, architects use mathematics for several reasons. Apart from the mathematics needed when engineering buildings, architects use geometry: to define the spatial form of a building; from the Pythagoreans of the sixth century BC onwards, to create forms considered harmonious, and thus to lay out buildings and their surroundings according to mathematical, aesthetic and sometimes religious principles; to decorate buildings with mathematical objects such as tessellations; and to meet environmental goals, such as to minimise wind speeds around the bases of tall buildings.