Final answer:
The lines "The wrinkled sea beneath him crawls;" and "And like a thunderbolt he falls." from 'The Eagle' by Lord Alfred Tennyson are notable for their strong visual imagery, depicting the sea's texture and the eagle's swift dive.
Step-by-step explanation:
The two lines in the poem 'The Eagle' by Lord Alfred Tennyson that create strong visual imagery are "The wrinkled sea beneath him crawls;" and "And like a thunderbolt he falls." The first line provides a vivid image of the sea's texture and movement, suggesting an almost sentient quality to the waters beneath the eagle. The second line powerfully captures the eagle's swift and precise movement as it dives towards its prey, likening it to a sudden and forceful burst of nature's energy. These visuals are further enhanced by Tennyson's use of rich, descriptive language, bringing the scenes to life in the reader's mind.