Question

Give reasons
a. Silver and copper turns green over time.
b. iron gets rusted more in areas near seas.

Answer 1

answers

a.due to the presence presence of moisture and acid in the atmosphere which corrodes the metal. here, hydrogen sulphide changes silver to black and moisture in the atmosphere changes copper to green.

b.Rusting of Iron is more in coastal areas is higher than any desert areas is because in coastal areas the amount of moisture in air is more than compared to desert areas and rusting happens faster when iron comes in contact with high amounts of moisture.

Answer 2

Answer:

a. Due to presence of moisture and acid in the atmosphere which corrodes

b. In coastal areas the amount of moisture in air is more than desert areas