Which river is the longest? Amazon River / Nile River / Mekong River
The Nile River is the longest.
Which insect is the smallest? Ladybug / Ant / Mosquito
The ant is the smallest insect.
Which is the fastest land animal? Leopard / Cheetah / Panther
The cheetah is the fastest land animal.
Which animal is the heaviest? Elephant / Blue whale / Rhinoceros
The blue whale is the heaviest.
Which is the hottest? The sun / Asteroid / Lava
The Sun is the hottest.
Which landmark is the oldest? Pyramids of Giza / Stonehenge / Great Wall of China
Stonehenge is the oldest landmark.
Which mountain is the highest? Everest / Himalayas / Fuji
Mount Everest is the highest mountain.
Which planet is the coldest in the solar system? Uranus / Mars / Jupiter
The Uranus is the coldest planet in the solar system.
Which country is the largest in the world? Russia / China / The U.S.A
Russia is the largest country in the world.
Which material is the hardest in the world? Steel / Gold / Diamond
The diamond is the hardest material in the world.