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- 1. Multiple Choice
The map shows the various ecoregions of Texas. Which ecoregion is most vulnerable to wind erosion from hurricanes originating in the Gulf of Mexico?Post Oak SavannahBlackland PrairiesEdwards PlateauGulf Prairies and Marshes - 2. Multiple ChoiceSand dunes are large piles of sand that can be found in the
desert. What causes these sand dunes to form?WaterWindIceVolcanoes - 3. Multiple ChoiceFrom the distinct shapes of sand dunes and their features in a desert, a geologist could most likely determine which of the following?Direction of the prevailing windDaily high and low temperaturesAmount of water nearbyAge of the formations
- 4. Multiple ChoiceThe Gulf Prairies and Marshes ecoregion experiences 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.
- 5. Multiple ChoiceThe tall rock formations with smooth surfaces in Big Bend
National Park were formed over time by -rock deposition.water erosion.local vegetation.wind weathering. - 6. Multiple ChoiceThe 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 caveA mountainA deltaA valley - 7. Multiple ChoiceIn the Edwards Plateau, the limestone rocks are highly
vulnerable to chemical and physical weathering. Which of the following land formations would be expected in this area?CanyonsLakesRiversCaves - 8. Multiple ChoiceHigh 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.
- 9. Multiple ChoiceWeathering of Earth’s surface can have which of the following
effects?Movement of sedimentDepositing of sediment in a new placeBreaking down of rocksBuilding of mountains - 10. Multiple ChoiceCanyons are formed by -earthquakes breaking rock layers apart.wind smoothing out rock formations.lava flowing from nearby volcanoes.rivers carrying sediments that weather and erode land.
- 11. Multiple ChoiceA valley will take on a U-shape as a result of the movement
of -GlaciersWindFlowing waterWaves - 12. Multiple ChoiceThe Texas High Plains region does not receive much rain. It is reasonable to predict that this region, compared to other ecoregions, would have -less soil erosion.larger river deltas.many mountains.sandy beaches.
- 13. Multiple ChoiceThe illustration provided shows exposed layers of
sedimentary rock in the High Plains region of Texas. Which of the following best explains the uneven nature of the exposed rock layers?Different types of rock weather at different rates when exposed.Wind speeds vary greatly over time in this region of TexasAn ancient river deposited sediments at different rates over time.Glacier movement always creates uneven rock formations. - 14. Multiple ChoiceThe Rolling Plains region of Texas has a number of deep
canyons. One would expect this region to have -Moving glaciersVolcanoesFlowing riversHigh wind - 15. Multiple ChoiceThe Blackland Prairie ecoregion of Texas has many exposed boulders that are smooth and rounded. What feature of this area caused the boulders to take on these characteristics?Moving glaciersWind-blown sand and rainWave and current actionsDeep and rapid rivers
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