Answer:
The answer is ectoderm. The mesoderm is the middle layer of lining. The endoderm is the innermost layer. You can remember it by:
Endo/ sounds like inner 
Meso/ M for middle
Ecto/ sounds like exo, bugs have exoskeletons that are on the outside. 
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The answer is D. Groundwater depletion
        
             
        
        
        
Answer:
Yes why would he do that in the first place I hope you are ok
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Answer:
D. Longshore currents
Explanation:
Longshore currents are characterized as the sediment transport that occurs in the surf zone, due to the oblique incidence of the waves, along the beach. A current develops between the beach and the surf zone parallel to the coast, normally between 0.3 and 1 m / s. It is this process that is responsible for accumulating and removing sand that results in displacement of barrier islands.