Earth Resources

 Which of these is a natural resource of Virginia?

• A dam
• A glacier
• A river
• A power plant

A scientist found a fossil of an organism that had gills. When the organism was living, the area in which it lived was most likely covered by —

• forest
• grassland
• bare rock
• water

Pumice is formed when lava from a volcano cools. Which rock type is pumice?

• Gaseous rock
• Igneous rock
• Sedimentary rock
• Metamorphic rock

The diagram above shows the changes to a land surface caused by a river flowing through the area for many years. Which process caused the changes to the surface?

• Condensation
• Erosion
• Evaporation
• Pollution

 Which of these is the most important product of Virginia forests?

• Pecan trees
• Pine cones
• Hardwood lumber
• Maple leaves

A student is hiking through a forest taking pictures for science class. Which picture would most likely be used as an example of human impact on Earth?

• A trail built by cutting down trees
• A river eroding away the riverbank
• A bird nest made of dead branches
• A group of butterflies landing on flowers

The top layers of soil are important because they —

• prevent earthquakes
• give plants nutrients
• protect the bedrock
• make walking easier

Granite is a hard material and forms from cooling magma. Granite is a type of —

• lava stone
• igneous rock
• volcanic dust
• sedimentary rock

The presence of an animal fossil in a rock gives evidence of —

• what hunting behaviors the animal used
• how many babies the animal had
• exactly when the animal was born
• the time period the animal lived in

Which of these human activities most relies on high-quality soil?

• Hiking
• Hunting
• Coal mining
• Growing crops