Question

explain how rusting of iron objects is faster in coastal areas than in desert​

Answer 1

Rusting of iron occurs only if iron comes in contact with moist air. In coastal areas, air contains high percentage of moisture because of sea or ocean, while in deserts air is dry and hot. As the percentage of moisture in air is more in coastal area compared to desert, rusting becomes faster.

Answer 2

because in coastal areas The air contains high moisture , but in the desert areas the air contain low moisture. so the rusting of iron objects is faster in coastal areas than in desert.