Why are tropical regions hot?
Show answer & explanation
Answer: Direct sunlight year-round
Direct sunlight year-round ✓ — Correct! Tropical regions (between Tropics of Cancer and Capricorn) receive direct overhead sunlight year-round. Solar radiation hits at near-90° angles, concentrating energy per unit area. Poles receive slanted sunlight spread over larger areas—less intense. The consistent high-angle sun creates perpetual warmth in tropics!
Ocean currents bring warmth — Wrong. While ocean currents affect climate, tropical heat primarily comes from direct overhead sunlight concentrating solar radiation in these latitudes.
No mountains block heat — Wrong. Mountains don't significantly affect regional heat. Tropics are hot because they receive direct overhead sunlight that concentrates solar energy.