One meter is 100 cm which implies 30 meters is 30*100 cm which is 3000 cm. So the continent has moved 3000 cm in 1000 years. So the distance traveled in one year will be 3000 cm divided by 1000 that is 3000/1000 which is 3cm/year So the rate at which a continent is traveling is 3 cm/year.
As lithospheric plates move away from midocean ridges they cool and become denser. They eventually become more dense than the underlying hot mantle. After subducted, cool, dense lithosphere sinks into the mantle under its own weight. This helps to pull the rest of the plate down with it. This is how slab pull occur
Pia spend about eight to ten dollars a week in the grocery for vegetables and fruits. If all amount for the next three weeks would be added it would be twenty-four to thirty dollars. First in order to get the amount per week it would be 20 percent multiply the total amount which is 40 to 50 dollars. Then in order to get the entire expenses for the three weeks on vegetables and fruits you can multiply the amount you get in the first process to three times.
