Texas Ecoregions and WED

The Gulf Prairies and Marshes ecoregion experience significant soil erosion. One would expect the climate in this region to be –

• dry and hot.

• cold and snowy.

• wet and rainy.

• warm and humid.

The Brazos River is the longest river in Texas, emptying into the Gulf of Mexico. What type of land formation would you expect to find where the river deposits sediments as it

reaches the Gulf?

• A cave

• A mountain

• A delta

• A valley

Which ecoregion of Texas is most likely to be most affected by wind erosion creating sand dunes and does receive rain, it can lead to flash floods, which can weather and erode the rocks and sediment.

• Region 4 Gulf Coast Prairies and Marshes

• Region 7 Edwards Plateau

• Region 10 High Plans

• Region 11 Trans Peco

How can a city help prevent water pollution in nearby lakes and rivers?

• Remove weeds growing near the lakes and rivers.
• Prevent runoff of waste materials into lakes and rivers.
• Use solar cells as a source of energy.
• Recycle paper and cardboard.

In Galveston, the beaches are often exposed to hurricanes originating in the Gulf of Mexico. It is reasonable to predict that hurricane activity may...

• create new rivers near Galveston
• move sand from the beach to offshore sand bars
• cause local earthquakes after the storm
• create new river deltas along the beaches

Which regions have the richest soil?

• Coastal Plains
• Great Plains
• Mountains and Basins
• North Central Plains

Water flows from lower to higher elevations.

• True
• False

Plants prevent soil erosion by-

• holding dirt in place with their roots
• providing food for herbivores
• the process of photosynthesis
• releasing water into the atmosphere through transpiration

Layers of sediment forming at the bottom of the ocean floor

• Weathering
• Erosion
• Deposition

What forms both valleys and canyons?

• glaciers
• rivers
• wind
• tides