Question

Geologists have evidence that over the past 1.5 billion years,

A. Earth's landmasses have moved about extensively but have remained separate.
B. Earth's landmasses have been entirely submerged in water on three occasions.
C. Earth's continents have remained essentially in their current shape and positions.
D. Earth's landmasses have joined into a single continent and split back apart again on three occasions.

Answer 1

The correct answer is C. Earth's continents have remained essentially in their current shape and positions. Over the past 1.5 billion years, there is evidence to support the idea that the continents have not extensively moved or joined into a single supercontinent and split apart again.

Step-by-step explanation:

The correct answer is C. Earth's continents have remained essentially in their current shape and positions. The concept of continental drift, first proposed by Alfred Wegener in the early 1900s, suggests that the Earth's continents were once joined together in a supercontinent called Pangea.

However, geologists have evidence that over the past 1.5 billion years, the continents have remained essentially in their current shape and positions.

This evidence includes the fit of the continents like pieces of a puzzle, the presence of matching fossils and mountain ranges on separated continents, and paleoclimate data which supports the idea of past continental locations near the poles and equator.