Anaerobic plays a major role in keeping us alive. 
        
             
        
        
        
Get twenty people, from various genders and ages, to be your testees. Create a random test that has both analytical and logical problems, and get the 'testees' (I have no idea if this is a word or not) to do the test before and after spending time outdoors.
An independent variable is how much time they spend outside, and the dependent is how well they function afterwards. (I think).
The constant is what stays the same, so most likely the tests in this case (if taking my example)
I don't really know what you mean by control, though...
This is what I would've done if it was my homework assignment, I'd suggest looking over my answers to see if they're accurate or not. Hope I helped, and good luck.
        
             
        
        
        
Answer:
B.
Explanation:
Once we were one big continent, so similarities on coasts of two different continents is evidence of them being once together
 
        
             
        
        
        
<h2>Yo WaSsuPp!!   ^v0!!</h2>
                             Feeling dum.b rn so Umh… what does it mean for the moon to have a Revolution?
<h3>         Lol no need to feel dum.b XD, everyone has trouble sometimes.</h3>
                           Revolution: the movement of an object in a circular or elliptical course around another or about an axis or center.
<h3>The moon having a revolution means that the moon is circling around the earth!!</h3><h3>                                          I apologize if i'm wrong// You're welcome if i' correct!</h3>
                        ((-Side Note-)): If you don't mind if this answer is correct can you give me brainliest? thank you ^v^!
<h3>                                   Have a great day ^v^"            </h3>
 
        
        
        
Answer:
The answer would be Diffusion because it does not require the use of energy