"cutting down trees to build new buildings and roads", "factory and automotive emissions causing acid rain" and "redirecting and storing freshwater behind dams" exemplifies a way in which humans modify ecosystems. The correct option among all the options that are given in the question is the last option or the fourth option.
        
                    
             
        
        
        
Answer:
 Humans and apes represent divergent lines of evolution from a common ancestor.
Explanation:
That's why we say we are related to chimps or other primates.
 
        
             
        
        
        
Answer:
Option A, Start the reaction by absorbing light energy
Explanation:
Chlorophyll is a green color pigment in plant that helps in entrapping sunlight. Being green in color, it absorbs the blue and red light and reflects the green light. The molecules of chlorophyll gains energy from sunlight and then jumps to higher energy levels by the process known as photo excitation. These excited molecules get ionized to further initiate the process of photosynthesis.
Hence, option A is correct.
 
        
                    
             
        
        
        
Answer:
Discovered that DNA was in the shape of a double helix