Quiz about Texas Ecoregions

Question 1

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

Accepted Answer

Gulf Coast Prairies and Marshes

Answer

Plains

Answer

Prairies

Answer

Plateau & Desert/Montane

Question 2

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

Accepted Answer

Erosion

Answer

Weathering

Answer

Deposition

Answer

Land formation

Question 3

Texas ecoregions are constantly changing due to natural and human impacts. What characteristic, we have studied, can increase an ecosystem's ability to withstand change?

Accepted Answer

Biodiversity

Answer

Survival of the Fittest

Answer

Photosynthesis

Answer

Natural Selection

Question 4

This Texas ecoregion experiences little erosion due to its rich soil with much vegetation where trees are the main plant life.

Accepted Answer

Woodlands

Answer

Plateau and Desert/Montane

Answer

Plains

Answer

Prairies

Question 5

Weathering can have which of the following effects in Texas?

Accepted Answer

Breaking down of rocks such as at Enchanted Rock

Answer

Sediment reaching the coast

Answer

Building of mountains in west Texas

Answer

All the above

Question 6

Deposition can have which of the following effects in Texas?

Accepted Answer

Forming of sand dunes at the coast

Answer

Rounding or sharpening of rocks

Answer

Breaking down of rocks such as at Enchanted Rock

Answer

All the above

Question 7

Erosion can have which of the following effects in Texas?

Accepted Answer

Shoreline of the coast to move landward

Answer

Building of mountains in west Texas

Answer

Breaking down of rocks such as at Enchanted Rock

Answer

All the above

Question 8

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

Accepted Answer

All the above

Answer

Increased erosion of the soil

Answer

Change from a grassland to desert

Answer

Plant life is scarce

Question 9

The landscape of the Texas Prairies has changed due to _____.

Accepted Answer

All the above

Answer

periodic fires

Answer

grazing of bison and livestock

Answer

humans making cropland/farmland

Question 10

In the Plains, soil erosion due to rain is lessened by ______.

Accepted Answer

All the above

Answer

plenty vegetation ground cover

Answer

plowing and planting along curves

Answer

efficient irrigation systems that use less water

Question 11

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

Accepted Answer

wind

Answer

rain

Answer

ice

Answer

gravity

Question 12

The Gulf Coast Prairies and Marshes are often exposed to tropical storms originating in the Gulf of Mexico. Which of the following are effects on the coastline?

Accepted Answer

All the above

Answer

reshaped by high winds and waves

Answer

eroded and covered by water

Answer

shoreline moves landward

Question 13

We have studied the Edwards Aquifer. It is a karst aquifer and is characterized by the presence of sinkholes and caves. It is located in what Texas ecoregion?

Accepted Answer

Plateau and Desert/Montane

Answer

Plains

Answer

Prairies

Answer

Gulf Coast Prairies and Marshes

Question 14

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

Accepted Answer

dense forests hold soil in place

Answer

sediments are released into runoff

Answer

fires have been going on for many years

Answer

All the above

Question 15

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

Accepted Answer

urban development

Answer

grazing of bison

Answer

logging

Answer

All the above

Question 16

Only 1 percent of tall grass remains in the Texas Prairies ecoregion. What can humans do to prevent erosion?

Accepted Answer

replant native plants, such as dense grasses

Answer

restart periodic fires

Answer

be irresponsible with development on the land

Answer

All the above

Question 17

Identify the similarity between these 3 ecoregions: Prairies, Plains, and Woodlands.

Accepted Answer

Fire has changed the land

Answer

Water erosion constantly reshapes the land

Answer

Overgrazing has removed almost all native plants

Answer

All the above

Question 18

In the Woodlands, erosion by runoff is minimal. What is a positive result from this?

Accepted Answer

All the above

Answer

maintains water quality in bays and estuaries

Answer

holds floodwaters

Answer

microorganisms in the water make pollutants less harmful

Question 19

Identify the similarity between these 3 ecoregions: Gulf Coast Prairies & Marshes, Plains, and Plateau & Desert/Montane.

Accepted Answer

Wind erosion affects the land

Answer

Periodic fires used to maintain grass

Answer

Native plants are scarce

Answer

All the above

Question 20

All human development _____ the rate of erosion on the land.

Accepted Answer

increases

Answer

decreases

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