Question

Wave erosion causes a certain coastline to recede at a rate of 3 centimeters each year. This occurs uninterrupted for a period of 8 years.

Answer 1

Coastline receded in a year = 3 centimeters

Number of years when coastline gets receded = 8 years

Length of coastline receded in 8 years = 3 * 8 = 24 cms