It is pretty simple which part are u confused by?
        
                    
             
        
        
        
Mr. crab loves to fry food. but the grease often splatters everywhere making a big mess. he decides to set up a test in order to determine which dish soap is best at removing grease. he washes 20 greasy dishes with standard dawn dish soap and washes another 20 greasy dishes in his own super awesome amazing dish soap. here dawn dish soap and  super awesome amazing dish soap is the independent variable in this experiment
- the experiment's independent variable The cause is the independent variable. Its value is unaffected by the other factors in your study.
- The effect is the dependent variable. Its value fluctuates as the independent variable changes.
To learn more about independent variable
brainly.com/question/1479694
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Answer
La corteza terrestre temprana apareció hace aproximadamente 4.500 millones de años, después de las últimas etapas de acreción planetaria.
 
        
             
        
        
        
Answer:
Point-source pollution is easy to identify. As the name suggests, it comes from a single place. Nonpoint-source pollution is harder to identify and harder to address. It is pollution that comes from many places, all at once.
 
        
             
        
        
        
Aero is the prefix for oxygen or air 
Aerobic= needs air 
Anaerobic=no air needed