There are a few very good reasons why the change in the ice mass results in a decline in the populations of penguins. One reason is the penguins food source grows and develops under the the ice masses. Another reason is a loss of habitat for the penguins. When there is less ice, there are fewer krill for the penguins to eat. 
        
             
        
        
        
Answer:
The correct answer is "grass -> grasshopper -> raccoon -> wolf"
Explanation:
Food chains are diagrams that represent the order at which organisms feed from each other, starting from producers that are able to make their own food, until quaternary consumers that feed from predators. In this case, the sequence of grass -> grasshopper -> raccoon -> wolf can be found in the meadow. Grass is a plant that function as producer, which is consumed by grasshopper (primary consumer), which is consumed by raccoon (secondary consumer), which is consumed by wolf (tertiary consumers). I attached the missing information in a picture.
 
        
             
        
        
        
Both represent physical weathering.
        
                    
             
        
        
        
Answer:
The plants may make toxins for human consumption.
Explanation: