Answer:
C.
Explanation:
Food chains focus on one set of organisms and their predators/prey, while food webs show multiple for each. Hope this helps. :)
 
        
             
        
        
        
<span>Foreshadowing means B. hinting at things that will occur later. Sometimes authors may introduce a symbol or a character so as to show the readers that something awaits them in the following chapters, but he or she will not reveal immediately what that actually is. The other examples don't really make any sense and do not refer to what foreshadowing actually is.</span>
        
             
        
        
        
Answer:
C. The acidity of one solution is 10 times greater than the acidity of
the other.
 
        
             
        
        
        
Answer:
Due to presence of water in these rocks.
Explanation:
The fossils of ferns, rushes, and primitive conifers can not be found in these rocks because these rocks are present under the sea millions of year ago. In this onondaga contains an abundant amount of coral fossils, crinoids, brachiopods, and trilobites due to their aquatic habitat. These organisms are present millions of years ago when this area comes under the sea so that's why the fossils of these organisms are present in these rocks.