Answer:
the answer is 1, oil and water
 
        
                    
             
        
        
        
The formula is CaCl2 as you need two Cl ions in order to combine with one Ca ion in order to form a neutral compound i.e. You need to have the same amount of charges therefore  you have two Cl ions which have  -1 charges for one +2 Ca ion.
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At Divergent boundary, Crust is created.
At Convergent boundary, Crust is destroyed.
At Transform boundary, Crust is neither created nor destroyed.
<h3>What occurs at Divergent, Convergent and Transform boundary?</h3>
A divergent boundary occurs when two tectonic plates move away from each other. At this boundary, new oceanic crust is created.
Convergent boundaries are those boundaries where two plates are pushing into each other. These boundaries are pushing one of the plates under the other and back into the mantle to melt.
Transform boundaries are places where plates slide sideways past each other. At this boundary, Crust is neither created nor destroyed.
Learn more about boundary here: brainly.com/question/14298823
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In short, when light illuminates a piece of metal, the light kicks off electrons from the metal’s surface and these electrons can be detected as a change in the electric charge of the metal or as an electric current. Hence the name: photo for light and electric for the current. The explanation behind this simple phenomenon opened the door to revolutionary modern physics concepts regarding the composition of light, quantum mechanics, and what is now referred to as the “wave-particle duality” of nature. The wave-particle duality of nature is perhaps one of the greatest mysteries of our universe and a very interesting philosophical subject! Your goal in this lab is to reproduce the photoelectric effect for yourselves and to understand how it demonstrates the particle behavior of light. 
        
                    
             
        
        
        
Answer:
The kidneys make urine by filtering wastes and extra water from blood. Urine travels from the kidneys through two thin tubes called ureters and fills the bladder. When the bladder is full, a person urinates through the urethra to eliminate the waste.
Explanation:
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