Answer:
The answer is b for apex. 
Explanation:
 
        
                    
             
        
        
        
Answer: Option D 
Explanation: 
Once the pathogen enters the body, it starts dividing and after a certain period of time the patients experience some sign and symptoms of illness.
The prodromal period occurs just after the incubation period. In this phase the pathogen keeps on dividing and the host begins to experience general symptoms and signs of illness.
This is a result of the activation of immune system of the body which results in the swelling, pain, soreness.
 
        
             
        
        
        
Answer:
Challenger Deep
Explanation:
In the Pacific Ocean, somewhere between Guam and the Philippines, lies the Marianas Trench, also known as the Mariana Trench. At 35,814 feet below sea level, its bottom is called the Challenger Deep — the deepest point known on Earth.
 
        
                    
             
        
        
        
The study of distribution of living organism is kow as demography, while studying their fosils is known as paleantology.
        
                    
             
        
        
        
Answer:
When water is moving fast, it bounces with other particles of water and it jumps and comes back to its normal place, while it jumps, there are tiny air bubbles of water that get between the two layers of water. And when this happens in a very great amount, then the water turns white.
Explanation:
When fast moving water is there, then the water particles bump on to each other, what happens is that as you know, when something bumps to another thing, it bumps and goes away, so same does the water, the water goes away, and then it comes back. but in the between time, tiny air particles and tiny airbubbles become trapped in the middle. When they get trapped, they make a white color.
So that was why, fast moving water turns white.
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