Like 50 miles for the outermost layer which is called the LITHOSPHERE
        
             
        
        
        
Answer:
Compound. 
Explanation:
If a molecule consists of 2 or more elements its a compound.
 
        
                    
             
        
        
        
In identical twins, alleles are identical and the order of the bases on the interior of the DNA molecule is identical (Options C and E). It is because genetic material is identical.
<h3>What are identical twins?</h3>
Identical twins refer to individuals produced by the same zygote cell, i.e., they are monozygotic twins.
Since these individuals are produced by the same zygote cell, their genetic material (DNA) will be identical.
Identical twins are useful to understand the exact role of genetics and environment in a given phenotypic trait.
Learn more about identical twins here:
brainly.com/question/17180337
 
        
             
        
        
        
Answer:
Independent Variable: Time each plant is exposed to daylight.
Dependent Variable: Hours of exposure
Constant Variables: Species of plant, location of each plant, amount of soil, amount of water, and tempurature.
Explanation:
Independent variable: the variable that stays the same.
Dependent: the measurement that is used to measure the independent variable. 
Constant: the variables that stay the same in a experiment.