Description:
The correct answer is:
✅ Cumulonimbus
Why?
Cumulonimbus clouds are the towering "thunderstorm giants" that develop a distinct anvil shape at their tops.
The anvil forms when the cloud hits the tropopause (upper atmosphere boundary), causing ice crystals to spread horizontally.
These clouds bring heavy rain, lightning, hail, and even tornadoes.
Key Features:
Height: Can reach 60,000+ feet (18 km)—taller than Mount Everest!
Weather: Associated with severe storms.
Why Not the Others?
❌ Cumulus: Puffy "cotton-ball" clouds (fair weather).
❌ Stratus: Flat, layered clouds (drizzle/overcast skies).
Fun Fact: The anvil can stretch hundreds of miles downwind from the storm! ⚡🌪️
Spot one? Seek shelter—it’s a storm warning! ☁️⚠️