Hi lovely! Here are your scientific questions that are testable: 
Does the type of liquid affect how fast an ice cube melts? 
Does changing the temperature of water affect the buoyancy of an egg?
Does the thickness of the wire affect the power of the circuit?
Hope I helped!
        
             
        
        
        
I think the answer is <span>sludge. 
Hope this helped.</span>
        
             
        
        
        
Answer:
(especially of a leaf or shell) having a round-toothed or scalloped edge
Explanation:
 
        
                    
             
        
        
        
 <span>Humans C</span>an't Re-Grow<span> Lost Limbs or O</span>rgans<span>, but Scientists are Successfully Cultivating Miniature O</span>rgans<span>, Specialized O</span>rgan<span> Cells and Replacement Body Parts.
Ex. So Basically People Can Grow ARTIFICIALLY Grow Organs, But Only When Your Still an INFANT Because Your Organs are Still Miniature and Still in The Human Body.
Hoped That Helped </span>
        
             
        
        
        
Answer: The virus weakens as time passes.
Explanation:  The virus will weaken continuously during transmission, and  will reduce its toxicity after several generations of transmission, without causing much harm to the human body.