Task 9: Most Impactful Aliens

#9 · 9 of 10

Paid plan required

Unlock the full library.

This exercise is part of the full library. The Practice Pass unlocks hints, explanations, instant answer reveal, and all 1,598 graded exercises — one payment, lifetime access. (The full course adds the capstone and GPT tutor.)

See all plans →Log in

All exercises in SQL Alien Invasion Challenge: Defend Earth