Texas Ecoregions: Weathering, Erosion, and Deposition

Why are there sea fossils in Texas?

• They migrated here.

• Texas was once underneath a shallow sea.

• Because of Galveston beach.

What created the Balcones fault in Texas?

• A combination of erosion and deposition.

• Weathering and erosion.

The Texas Hill country was created because of what?

• Deposition and erosion..

• Weathering and erosion.

Enchanted Rock was created by uplifting due to faulting, and the topsoil was ____ & ______. 

• weathered, eroded

• uplifted, eroded

Using pictures 3 & 4, how was the Edwards Aquifier formed?

• erosion & deposition

• erosion, weathering 

TRUE OR FALSE: Rainwater can enter an aquifer, and then emerge from a springs pool a few days or hours later.

• True

• False

How can a canyon be formed in the Big Bend National Park in West Texas?

• It rains too much.

• The water from the Rio Grande River slowly erodes and cuts the valleys through the rock.

Explain how barrier islands off the Gulf of Texas are formed.

• Rain and sand

• Sand and sediment were deposited from waves; sand and sediment are built up on sandbars.