Question

Regional erosion occurs at a rate of 2 m per 1,000 years.

How much regional erosion will occur over 1,000,000 years?


20 m

200 m

2,000 m

100,000 m

Answer 1

2,000

Step-by-step explanation:

Answer 2

2000m

Step-by-step explanation:

Given parameters:

Rate of regional erosion = 2 m per 1000years

Unknown:

Amount of regional erosion in 1, 000, 000 years.

Solution:

If it takes 1000 years for regional erosion to remove 2m of earth

then, in 1, 000, 000 years, the amount of regional erosion will be:
`( 2 x 1000000)/(1000)`

⇒ 2000m

In a million years to come, 2000m of earth would have been eroded as a result of regional erosion.