Round 1- Review Vocab 1- Unit 4- lesson 1

Marine researchers try to understand the ocean's (a)   habitats.

• diverse
• survive
• simple

Maintaining a (a)   climate is essential for a healthy and resilient ocean.

• stable
• double
• reduce

Plastic pollution in the oceans has (a)   in the past two decades.

• doubled
• estimated
• decreased

Scientists (a)   that over half the planet's life remains undiscovered in the ocean depths.

• estimate
• reduce
• commercial

Many individuals are trying to (a)   coral reefs and other damaged ocean habitats.

• restore
• double
• quantity

Several actions are needed to (a)   overfishing and protecting marine life.

• reduce
• double
• diverse

Reducing the (a)   of greenhouse gas emissions is crucial for ocean health.

• quantity
• quality
• diverse