Oceans Water and Coral Reefs Trivia

Question 1

How many of the 50 essential minerals does the ocean contain?

Accepted Answer

37

Question 2

What produces the oxygen generated by the oceans?

Accepted Answer

Phytoplankton and algae

Question 3

How many plastic particles are floating in the ocean, according to experts?

Accepted Answer

Five trillion

Question 4

Which landmark do astronauts use that is visible from space?

Accepted Answer

Australia's Great Barrier Reef

Question 5

The ocean is home to about how many different species of sharks?

Accepted Answer

400

Question 6

What is a sea, according to the book?

Accepted Answer

A narrow region in an ocean, often bordered by land

Question 7

How many lakes exist on Earth, according to scientists?

Accepted Answer

117 million

Question 8

How did Martin Strel swim the Amazon River?

Accepted Answer

Swimming 10 hours per day for over two months

Question 9

Which river is second in length to the Nile?

Accepted Answer

The Amazon

Question 10

Where is the natural subterranean river Puerto Princesa located?

Accepted Answer

The Philippines

Question 11

According to National Geographic, nearly how many fish species live in rivers?

Accepted Answer

10,000

Question 12

Which river is known as the world's deepest?

Accepted Answer

The Congo

Question 13

What are rivers that run underground called?

Accepted Answer

Subterranean rivers

Question 14

Experts estimate the many benefits we gain from coral reefs equate to about how much per year?

Accepted Answer

$10 trillion

Question 15

Corals' naturally occurring fluorescent colors protect the animal from what?

Accepted Answer

UV rays

Oceans Water and Coral Reefs trivia