The great rift valley was formed by violent subterranean forces that tore apart the earth's crust. These forces caused huge chunks of the crust to sink between parallel fault lines and force up molten rock in volcanic eruptions.
 
        
                    
             
        
        
        
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Hepatitis B is a viral infection. This infection attacks the liver and is a source of acute and chronic disease. It is transmitted by body fluids like blood, and can also be transmitted by sex if one is infected, or by childbirth by the infected mother. It is also transmitted if people are sharing needles or syringes. So prevention would be done by practicing safe sex, testing ourselves before we have kids, and using clean syringes and needles that nobody used before us. Besides these, there is a vaccination that is safe and works. 
Most don't report symptoms when infected. But some can experience illness for several weeks and their skin starts yellowing along with the eyes, urine becomes darker, nausea and fatigue along with vomiting or abdominal pain.
 
        
             
        
        
        
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It’s the first one, humans
        
             
        
        
        
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The best describes asbestosis is a breathing disorder caused by inhaling asbestos fibers. asbestosis is actually a chronic lung disease that causes long term breathing complications and that worst part of it is that it has no cure
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