Ocean Life and Geography Concepts

How much of Earth's surface is covered by oceans, and how many oceans are there?

• A little over 50%, 3 oceans

• A little over 60%, 4 oceans

• A little over 70%, 5 oceans

• A little over 80%, 6 oceans

Why do the deepest parts of the ocean have little to no plant life?

• The water pressure is too high for plants to survive.

• There are too many predators that eat plants in the deep ocean.

• Sunlight cannot reach deep into the ocean, and plants need sunlight to survive.

• The temperature is too cold for plants to grow.

What is coral classified as?

• A plant

• An animal

• A type of algae

• A type of seaweed

What is the name of the underground mountain range that runs through the Atlantic Ocean?

• Mid-Atlantic Ridge

• Pacific Mountain Range

• Indian Ocean Trench

• Southern Ocean Plateau

Which ocean is known as the warmest among the five major oceans?

• Atlantic Ocean

• Pacific Ocean

• Indian Ocean

• Arctic Ocean