SAT English Practice Question

The history of the Earth can be understood by studying the rock layers found beneath the surface. These layers, called strata, are formed over millions of years as sediment is deposited and compressed. By examining the strata, scientists can learn about the history of life on Earth, the climate of the past, and the geological events that have shaped the planet. The relative ages of different strata can be determined using a principle called the principle of superposition, which states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest layers are at the top.

1. A.To determine the exact age of the Earth.
2. B.To understand the history of life on Earth, past climates, and geological events.
3. C.To identify the different types of sedimentary rocks found on Earth.
4. D.To create accurate maps of the Earth's surface.