Environmental Science Quiz

Which best describes the percentage of Earth’s water that is salt water?

• 20 percent

• 42 percent

• 79 percent

• 97 percent

Humus consists of:

• clay.

• decomposed parent material.

• well-decomposed organic matter .

• silt.

Another name for sapwood is:

• cambium.

• heartwood.

• phloem.

• xylem.

Which freshwater game fish is so popular that the industry has created specialized gear for catching it?

• crappie

• largemouth bass

• smallmouth bass

• trout

Small pieces of material in the air similar to dust and liquid droplets are best known as:

• gases.

• oxides.

• particulate matter .

• photochemical matter .

The red side of a compass needle always points:

• east.

• north.

• south.

• west.

A naturally occurring material or organism that supports life, provides fuel, or is used in other ways by humans is a:

• nonrenewable product.

• productive resource.

• natural resource.

• consumable product.

The greatest problems of air pollution are caused by:

• animals.

• humans.

• nature.

• water.

Which fish is native to North Carolina and is also called papermouth, calico bass, and speckled perch?

• black crappie

• bluegill

• catfish

• trout

Preparing forecasts and studying weather trends best describes careers in:

• weather and climate.

• air quality.

• soil and water conservation.

• education and communications.