The answer would be A because I did the math :)
Answer:
the answer is the explaination
Explanation:
Present beach erosion prevention methods include sand dunes, vegetation, seawalls, sandbags, and sand fences. Based on the research conducted, it is evident that new ways to prevent erosion must be obtained. Each way that is currently used has extensive negative effects on beaches and their natural tendencies.
B low frequency it is the lowest frequency
Answer:
Un automóvil en movimiento en una carretera.
Una piedra rodando por una colina.
Un hierro que se empuja a través del materia