Ocean Pollution & Harm

Question 1

On a coastal park, many tiny plastic fragments from broken water bottles are floating in the water. A school of small fish eats these fragments. Later, a group of seagulls that feed on those fish start looking thin and sick. Which explanation best describes how the plastic is harming the seagulls?

Accepted Answer

The tiny plastic pieces are inside the fish, and when the seagulls eat the fish, the plastic can block the seagulls’ digestive system and release chemicals that make them sick.

Answer

The seagulls are getting stuck by large pieces of plastic they try to swallow.

Answer

The plastic makes the water warmer, which weakens the seagulls’ feathers.

Answer

The plastic attracts more insects, leading the seagulls to eat the insects instead of fish and become weak.

Question 2

Which three of the following are ways people directly damage the ocean?

Accepted Answer

plastic waste, oil spills, overfishing

Answer

whale migration, oil spills, plastic waste

Answer

sunlight, overfishing, plastic waste

Answer

plastic waste, sea‑salt extraction, coral bleaching

Question 3

Sam’s class learns that most of the trash that ends up in the ocean comes from places on land. Which reason best explains why this happens?

Accepted Answer

Land‑based litter (like litter in parks, streets, and rivers) is carried by wind and water into the sea.

Answer

Most cargo ships dump their waste directly into the ocean every day.

Answer

Sea creatures produce plastic that floats to the surface and spreads everywhere.

Answer

The ocean creates its own chemical pollutants without any human activity.

Try three questions

On a coastal park, many tiny plastic fragments from broken water bottles are floating in the water. A school of small fish eats these fragments. Later, a group of seagulls that feed on those fish start looking thin and sick. Which explanation best describes how the plastic is harming the seagulls?

Which three of the following are ways people directly damage the ocean?

Sam’s class learns that most of the trash that ends up in the ocean comes from places on land. Which reason best explains why this happens?

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