CAST Practice Test

Front

What is a lake system?

Back

A lake system is a body of water that collects water from rivers and surface runoff, providing a habitat for various aquatic life.

Front

What is a fish tank system?

Back

A fish tank system is a controlled environment for keeping fish, where the temperature and water conditions are maintained consistently.

Front

Why is building homes near the shoreline on the other side of the river not helpful?

Back

Building homes near the shoreline can lead to flooding and environmental damage, making it a not helpful suggestion.

Front

What does it mean when fish do not get all necessary nutrients directly from the water or plants?

Back

It means that fish require additional food sources, such as fish food, to obtain essential nutrients for their health.

Front

Why is it helpful to build homes at least 1 meter above the ground using stilts?

Back

Building homes on stilts helps protect them from flooding and rising water levels, making it a helpful suggestion.

Front

What happens to the temperature in a fish tank system?

Back

The temperature in a fish tank system stays about the same all the time, providing a stable environment for the fish.

Front

What is surface runoff?

Back

Surface runoff is the flow of water that occurs when excess rainwater, meltwater, or other sources flows over the ground surface.

Front

What role do rivers play in a lake system?

Back

Rivers provide a continuous supply of water to the lake system, contributing to its water level and ecosystem.

Front

What is the importance of oxygen in a fish tank?

Back

Oxygen is essential for fish survival as it is dissolved in the water and is necessary for their respiration.

Front

How does adding fish food affect the fish tank environment?

Back

Adding fish food increases the nutrients available in the water, which can support the growth of beneficial bacteria and plants.