Glacial striations gouged into bedrock allow geologists to understand

a. the speed of glacial movement
b. how much meltwater was produced
c. the direction of glacial movement
d. how much rock flour was carried

Answer;

C. the direction of glacial movement

Explanation;

-Striations are scratches formed on a rock surface by rock fragments frozen into the bottom of a moving glacier.Rocks embedded in the bottom of the glacier scrape along the newly exposed bedrock and leave behind line-shaped scratch marks called glacial striations. The direction of the scratch marks tells us the direction that the glacier flowed

-Glacial grooves and striations are gouged or scratched into bedrock as the glacier moves downstream. Boulders and coarse gravel get trapped under the glacial ice, and abrade the land as the glacier pushes and pulls them along.