Question

A plate moves 200 m in 10,000 years. What is its rate in cm/year?
O 0.02 cm/year
O 2 cm/year
O 10 cm/year
O 100 cm/year​

Answer 1

Converting m into cm

1m = 100cm

200 m = 200 × 100 = 20,000cm

it means plate moves 20,000 cm in 10,000 years

For per year-

20,000/10,000 = 2cm/year