Answer:
In order to deposit 100 meters of limestone layer, it will take 6,451,600 years
Explanation:
Given that,
The rate of deposition carbonate sediments is 1.55 cm in 1,000 years
⇒ 1.55 cm = 1,000 years
⇒ 1 cm = 
⇒ 1 cm = 645.16 years
∵ 1 m = 100 cm
∴ 100 m = 100 × 100 cm
⇒ 100 m = 10,000 cm
So, the time it will take for carbonate to deposit 100 m thick layer of limestone will be-
⇒ 10,000 cm (100 meter) = 645.16 × 10,000 years
⇒ 100 meters = 6,451,600 years
The giant continent was called...
a. Pangaea
The Earth's rocky outer crust solidified billions of
years ago, soon after the Earth formed. This crust is not a solid
shell; it is broken up into huge, thick plates that drift atop the soft,
underlying mantle.
The plates are made of rock and drift all over the globe; they move both
horizontally (sideways) and vertically (up and down). Over long
periods of time, the plates also change in size as their margins are
added to, crushed together, or pushed back into the Earth's mantle. These plates are from 50 to 250 miles (80 to 400 km) thick.
