Question 1

What is a marine ecosystem?

Accepted Answer

A marine ecosystem is a community of living things in the ocean. It includes animals, plants, and small creatures you can't see with your eyes, all living together in the sea.

Question 2

Why are marine ecosystems important?

Accepted Answer

Marine ecosystems are important because they provide homes for many animals and plants. They also help us by making the air we breathe and giving us food like fish.

Question 3

What animals live in marine ecosystems?

Accepted Answer

Lots of animals live in marine ecosystems, like fish, whales, sharks, dolphins, and sea turtles. There are also smaller creatures like crabs, starfish, and colorful corals.

Question 4

What is coral?

Accepted Answer

Coral is a tiny animal that lives in groups called reefs. These reefs look like bright underwater gardens and provide homes for many sea creatures.

Question 5

How do fish breathe underwater?

Accepted Answer

Fish breathe underwater using their gills. Gills take oxygen from the water so that fish can stay alive and swim around.

Question 6

What is the biggest animal in the ocean?

Accepted Answer

The biggest animal in the ocean is the blue whale. Blue whales can be as long as two school buses put together!

Question 7

What does a sea turtle eat?

Accepted Answer

Sea turtles like to eat things like jellyfish, seaweed, and small animals. Different kinds of sea turtles enjoy different foods.

Question 8

Why is the ocean salty?

Accepted Answer

The ocean is salty because it has salt minerals washed from rocks on land. Rivers carry the salt to the ocean, making the seawater salty.

Question 9

How deep is the ocean?

Accepted Answer

The ocean is very deep, and in some places, it's deeper than the tallest mountains on land. The deepest part is called the Mariana Trench.

Question 10

What is plankton?

Accepted Answer

Plankton are tiny living things that float in the ocean. Even though they're very small, they are food for many sea animals like whales and fish.

Question 11

Why is the ocean blue?

Accepted Answer

The ocean is blue because water reflects the color of the sky. Sunlight's blue colors scatter in water, making the ocean look blue to us.

Question 12

What is an ocean current?

Accepted Answer

An ocean current is like a river in the sea that moves water around. Currents help mix the hot and cold water and can carry things like food for sea animals.

Question 13

How do crabs move sideways?

Accepted Answer

Crabs have legs that make it easier for them to move sideways. Moving sideways helps them get away quickly if they're in danger.

Question 14

What is the Great Barrier Reef?

Accepted Answer

The Great Barrier Reef is the biggest coral reef system in the world. It's so big you can even see it from space, and it has lots of colorful fish and corals.

Question 15

Why do some fish glow in the dark?

Accepted Answer

Some fish have special lights in their bodies to help them glow in the dark. This glow helps them find food or keep away from danger.

Question 16

What are seahorses?

Accepted Answer

Seahorses are tiny fish that look like horses. They swim upright and are great at blending in with plants in the sea.

Question 17

Why are sharks important?

Accepted Answer

Sharks are important because they help keep the ocean healthy. They eat sick or weak animals, which helps make sure there are strong animals in the sea.

Question 18

Can dolphins talk to each other?

Accepted Answer

Yes, dolphins can talk to each other using clicks, whistles, and other sounds. This helps them find food and stay safe in groups.

Question 19

What is the difference between an ocean and a sea?

Accepted Answer

Oceans are bigger than seas. Seas are smaller and usually found where the land and ocean meet.

Question 20

How can we help protect marine ecosystems?

Accepted Answer

We can help protect marine ecosystems by not littering, using less plastic, and learning more about the ocean. This helps keep the water clean and safe for animals and plants that live there.

The Wonders of Marine Ecosystems - 20 FAQs Explained Simply