Question

how are the grasshoppers in north america today different from the rocky mountain locusts of the 1800s? today’s grasshoppers are less devastating. today’s grasshoppers are facing extinction. today’s grasshoppers eat mainly wheatgrass. today’s grasshoppers are more widespread.

Explanation:

To solve this, we analyze each option:

• Option 1: Rocky Mountain locusts in the 1800s caused massive devastation (like crop failures). Modern grasshoppers don't have such devastating impacts, so this is correct.
• Option 2: There's no indication modern grasshoppers face extinction; Rocky Mountain locusts are extinct, so this is wrong.
• Option 3: Eating mainly wheatgrass isn't a known key difference between modern grasshoppers and historical Rocky Mountain locusts, so this is wrong.
• Option 4: Rocky Mountain locusts were widespread in their time, and modern grasshoppers aren't more widespread than that, so this is wrong.

Answer:

A. Today’s grasshoppers are less devastating.