Question 1 / 18

What is the largest living organism on Earth?

Blue Whale

Giant Sequoia Tree

Great Barrier Reef

African Elephant

Question 2 / 18

What is the hottest continent on Earth?

Africa

Australia

South America

Antarctica

Question 3 / 18

What is the deepest ocean in the world?

Pacific Ocean

Atlantic Ocean

Indian Ocean

Arctic Ocean

Question 4 / 18

What is the longest river in the world?

Nile River

Amazon River

Yangtze River

Mississippi River

Question 5 / 18

What is the highest mountain in the world?

Mount Everest

K2

Kilimanjaro

Makalu

Question 6 / 18

What is the largest desert in the world?

Sahara Desert

Gobi Desert

Arabian Desert

Kalahari Desert

Question 7 / 18

What is the hottest temperature ever recorded on Earth?

134°F (56.7°C)

159°F (70.5°C)

128°F (53.3°C)

140°F (60°C)

Question 8 / 18

What is the coldest temperature ever recorded on Earth?

-128°F (-89.2°C)

-159°F (-70.5°C)

-140°F (-60°C)

-112°F (-80°C)

Question 9 / 18

What is the most common type of cloud?

Cumulus

Cirrus

Stratus

Nimbus

Question 10 / 18

What is the most common type of soil on Earth?

Clay

Silt

Sand

Loam

Question 11 / 18

What is the most common type of tree in the world?

Oak

Maple

Pine

Cedar

Question 12 / 18

What is the most common type of bird in the world?

Pigeon

Sparrow

Crow

Seagull

Question 13 / 18

What is the most common type of mammal in the world?

Human

Mouse

Rabbit

Cat

Question 14 / 18

What is the most common type of fish in the world?

Tuna

Salmon

Carp

Sardine

Question 15 / 18

What is the most common type of reptile in the world?

Crocodile

Turtle

Lizard

Snake

Question 16 / 18

What is the most common type of insect in the world?

Ant

Bee

Cockroach

Mosquito

Question 17 / 18

What is the most common type of amphibian in the world?

Frog

Salamander

Toad

Newt

Question 18 / 18

What is the most common type of plant in the world?

Grass

Fern

Moss

Cactus