Question

Scientists Believe that:

A. The continents are shifting

B. The world was once one big mass

C. The center of the earth is made of iron and nickel

D. All of the above

E. None of the above

Answer 1

the answer is D

Step-by-step explanation:

Answer 2

Answer: D

Explanation: Today, we know that the continents rest on massive slabs of rock called tectonic plates. They are constantly in movement and they are responsible for several natural disasters. Approximetly 335 million years ago, during the late Paleozoic and early Mesozoic eras, the world was one big mass, called Pangea, which eventually would start to break apart about 175 million years ago. At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy.

I hope it helps