It would be Primary because the lake is it’s starting point and the pollution grew all the way to the factory.
        
             
        
        
        
The red dot is filled. The other red dot is filled because
        
             
        
        
        
Answer:  <em> It cant change</em> 
Explanation:
A theory does not change into a scientific law with the accumulation of new or better evidence
 
        
             
        
        
        
The tissue you are referring to here is the xylem, a <u>vascular tissue</u>, whose basic function is to transport water and nutrients from the roots to the rest of the plant.
 
        
             
        
        
        
The correct option is C.
Scanning electron microscope is a type of microscope that uses beams of electrons that are reflected to form images to scan the surfaces of mounted biological specimens. High resolution, three dimensional images can be obtained via the reflected beam of electrons. Thus, the electron scanning microscope is the perfect microscope for examining the contours on the surface of a bacterial cell.