Question

1. the author compares the movement of the plates to chunks of ice moving on the top of a frozen river. this comparison is used to:

a. help you have a visual image of the way the plates move
b. give you the idea that earth’s surface is very cold
c. help you to understand that the lower layers of earth are made of water
d. help you understand that plates move only in the winter

Explanation:

• Option a: Comparing plate movement to ice chunks on a frozen river is a simile to create a mental image of plate motion, which is a common technique in explanations (e.g., in geology or science education) to aid visualization.
• Option b: The comparison is about movement, not Earth's surface temperature, so this is incorrect.
• Option c: Earth's lower layers (like the mantle) are not water - based, and the comparison doesn't imply this, so this is wrong.
• Option d: Plate movement is a geological process, not related to seasons like winter, so this is incorrect.

Answer:

a. Help you have a visual image of the way the plates move