From an overall perspective, A would be the best answer. Since the Nile River has always been one of the biggest rivers in history, it would most likely sustain life for the people. As well as the mediterranean, people for thousands of years relied on the Mediterranean Sea for their food and even their transportation.
        
             
        
        
        
Answer:
We would need the whole question or page even to solve this, my best shot would be 24 because 15+9= 24. If this is wrong please forgive me.
 
        
                    
             
        
        
        
Answer: Sweating when it is hot outside is an example of responding to the environment. Homeostasis is responsible for adapting our body to changes in the environment to help its survival.
Explanation: And if you need anything else my friend just ask away :)
 
        
             
        
        
        
The three important physical features found along the west coast of South America is the Andes Mountains, Atacama desert, and the Lake Titicaca. Andes Mountain is the highest mountain found outside of Asia and runs along the western side of South America. The Atacama desert is a plateau found west of the Andes Mountains and the driest desert in the world. The Lake Titicaca is deep lake located on the border of Bolivia and Peru.
        
             
        
        
        
Answer: am equals 11 and ab equals 50÷8 
Explanation:
Just add or divide or multiple or subtract