Hydrosphere Review Questions

Front

Which are the main producers in the ocean?

Back

Algae and other microscopic organisms in the sunlight zone.

Front

What pH level is best for marine organisms?

Back

8.0.

Front

What is a possible effect of high nutrient levels in water systems?

Back

Algal bloom.

Front

What are indicators of a healthy water source?

Back

Low temperatures, high dissolved oxygen, and neutral pH.

Front

What is a bioindicator?

Back

A species that depends on specific conditions to survive.

Front

What role do algae play in the ocean ecosystem?

Back

They are primary producers that convert sunlight into energy.

Front

What is the significance of dissolved oxygen in water?

Back

It is essential for the survival of aquatic organisms.

Front

How does temperature affect aquatic life?

Back

Different species have specific temperature ranges for optimal survival.

Front

What is an algal bloom?

Back

A rapid increase in algae due to high nutrient levels, often harmful to aquatic life.

Front

What does pH measure in water?

Back

The acidity or alkalinity of the water.