Impact of Plastic Pollution on Oceans

Plastic is a versatile and durable material used in various applications, but its disposal has led to significant environmental issues, particularly in oceans. Large plastic debris harms marine life, while microplastics, formed from broken-down plastic waste, persist in marine ecosystems, causing subtle yet widespread problems. Solutions like biodegradable plastics and ocean cleanups are proposed to mitigate these impacts. CSIRO supports ocean research to better understand and address these challenges.

What makes plastic a preferred material for various applications?

• It rusts and rots easily.

• It is expensive and rare.

• It is biodegradable and eco-friendly.

• It is strong, flexible, and durable.

How does large plastic debris affect marine animals?

• It helps them build nests.

• It can entangle or be ingested by them.

• It improves their habitat.

• It provides them with food.

What happens to plastic when exposed to sunlight and waves?

• It becomes more rigid.

• It turns into smaller pieces.

• It dissolves completely.

• It changes color.

What percentage of discarded plastic ends up in the oceans?

• 10%

• 5%

• 1%

• 20%

Why are microplastics difficult to decompose?

• They dissolve in water.

• They are made of organic compounds.

• They are highly durable.

• They are too large for microorganisms.

What is a potential consequence of microplastics in the ocean?

• They enhance ocean currents.

• They increase water temperature.

• They attract and collect toxic chemicals.

• They provide nutrients to marine life.

What is a challenge in dealing with microplastics?

• They decompose quickly.

• They are beneficial to marine life.

• They are easy to see and remove.

• Their effects are subtle and hard to trace.

What is one proposed solution to reduce plastic impact on oceans?

• Increasing plastic production.

• Switching to biodegradable plastics.

• Banning all plastic use.

• Encouraging plastic burning.

What is the role of the RV Investigator?

• To clean up plastic from the sea.

• To conduct oceanic research and studies.

• To monitor weather patterns.

• To transport goods across oceans.

Which organization supports the research vessel RV Investigator?

• NASA

• CSIRO

• UNESCO

• Greenpeace