Seventh Grade Science

Test Description: Texas 7.8A, 7.8B, 7.8C

Instructions: Answer all questions to get your test result.

1) U-shaped valley formation is a result of what?

2) The Texas High Plains region does not receive much rain. It is reasonable to predict that this region, compared to other ecoregions, would have

3) What explains are hoodoos are formed?

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

5) From the distinct shapes of sand dunes and their features in a desert, a geologist could most likely determine which of the following?

6) Which ecoregion is most vulnerable to wind erosion from hurricanes originating in the Gulf of Mexico?

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

8) The tall rock formations with smooth surfaces in Big Bend National Park were formed over time by

9) The Brazos River is the longest river in Texas, empty ing 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?

10) In 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?

11) What is a possible effect of severe beach erosion?

12) 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?

13) Sand bars are large deposits of sand that appear close to the shoreline of a beach. Which of the following processes is responsible for creating sand bars?

14) Which of the following is NOT an example of physical or mechanical weathering?

15) Which is NOT an example of chemical weathering?

16) Which is NOT an example of organic/biological weathering?

17) Which is NOT a type of weathering that contributes to changes in the Earth's surface?

18) Which of the 10 ecoregions in Texas does San Antonio belong to?

19) What factor did NOT contribute to Texas being rich in natural gas and oil?

20) How have humans impacted the various ecoregions?


*select an answer for all questions

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