Ecoregions of Texas

Which Texas ecoregion would most likely have the most evidence of erosion by water?

• Gulf Coast Prairies and Marshes

• Plains

• Prairies

• Plateau & Desert/Montane

Most Texas ecoregions are experiencing accelerated rates of _________ that are changing the natural communities within the ecosystems.

• Weathering

• Erosion

• Deposition

• Land formation

Which of the following is a human use of the Gulf Coast Prairies that increases erosion?

• grazing of bison

• urban development

• logging

• All the above

What catastrophic event causes the most most water erosion in the gulf coast?

• Hurricanes

• Tornadoes

• Flash Floods

• Earthquakes

This is a picture of the __________ ecoregion of Texas.

• High Plains
• Gulf Coast Plains and Marshes
• Piney Woods
• Hill Country

In the Woodlands, erosion by runoff is minimal due to ______.

• dense forests hold soil in place

• sediments are released into runoff

• fires have been going on for many years

• All the above

Define Ecoregion

• spots in Texas

• an area defined by its environment

• locations

• sections

High rains cause the flow in a river to increase. The increase in the river’s flow will most likely have which of the following effects on the environment?

• The banks of the river will experience increased erosion.
• The river will deposit less material onto its delta.
• The path of the river will become more crooked.
• The river will dry out completely in a few days.

What was the effect of overgrazing in the Desert/Montane?

• Increased erosion of the soil

• Change from a grassland to desert

• Plant life is scarce

• All the above

In the Plains, droughts reduce the amount of plants causing erosion from _____ to be worse.

• wind

• rain

• ice

• gravity