Earth Systems LC 1 Review

The image shows the continents of Earth in their current locations. Which of the following claims is true about the location of the continents today?

• Sections of continents were once attached and have since separated.

• All continents were once much further apart and are moving closer together.

• All continents are in a fixed position.

Which of the following patterns can be observed in the graphic? Select the two (2) that apply.

• The red color represents older sea floor found at ocean ridges.

• The red color represents younger sea floor found at ocean ridges.

• The green color represents older sea floor near the edges of continents.

What happens to Earth's crust at a subduction zone?

• The crust dissolves over time

• The Earth’s crust is recycled in the mantle

Which statement best explains why fossils of a tropical fern were found in Antarctica?

• The tropical fern adapted to colder temperatures.

• The continents were once connected but have since separated and moved to their current location.

• Animals carried the ferns to Antarctica.

Which of the following statements is TRUE?

• All continents were once much further apart and are moving closer together.

• All continents are in a fixed position.

• Sections of continents were once attached and have since separated.

What do the darker lines on the map indicate? (Look at the lines the arrows are pointing at)

• underwater mountain ranges

• tectonic plate boundaries

• climate zones

What process is occuring in the diagram?

• earthquake

• converging mountain ranges

• sea floor spreading

Sea floor spreading occurs along which type of plate boundary?

• divergent

• transform

• convergent

Geologic processes change the surface of Earth

• during the summertime

• quickly

• gradually over time

The Ring of Fire is an area on Earth where

• fires erupt when it's windy

• earthquake and volcanoes occur frequently

• trenches are not as deep as other areas in the world