7.8ABC& 7.9A

Weathering

100

How does wind changes land in a desert? A) erode rocks B) effects on plants C) effects on animals D) all of the above

D) all of the above

300

From the distinct shapes of sand dunes and their features in a desert, a geologist could most likely determine which of the following? A) direction of the prevailing wind b) amount of water nearby or c) age of formation

A) direction of the prevailing wind

Texas Ecoregions

200

In the high plains region of Texas, which of the following best explain the uneven nature of exposed rock layer? A) different types of rock weather at different rates when exposed B) Wind speeds vary greatly over time in this region of Texas or C) an ancient river deposited sediments at different rates over time

A) different types of rock weather at different rates when exposed

300

Which ecoregion is most vulnerable to wind erosion from hurricanes originating in the Gulf of Mexico? A) Post Oak Savannah B) Blackland Prairie C) Edwards Plateau d) Gulf Prairies and Marshes

d) Gulf Prairies and Marshes

500

In 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? A) Canyons B) Lakes C) Rivers D) Caves

D) Caves

Life on Earth

100

What are three ways Earth Supports life?

providing liquid waster, strong gravitational pull, atmospheric gases ( photosynthesis)

200

The ozone layer protects life on Earth by- A) deflecting small meteors B) creating gravitational pull C) absorbing ultraviolet radiation D) blocking solar winds

C) absorbing ultraviolet radiation

300

Ozone contributes to supporting life on earth by blocking A) atmospheric heat B) helium icons C) ultraviolet radiation

C)Ultraviolet Radiation

400

A planet's ability ti support life is partly determined by its orbit around the Sun, which is a result pf the combination of the planet's momentum, and the Sun's- A) absolute luminosity B) gaseous composition C) high temperature D ) gravitational pull

D) gravitational pull

Catastrophic Events

200

In a marsh ecosystem that experiences a hurricane, which of the following would be the most likely effect? A) a loss of plant life from saltwater brought in by the storm surge B) Death of most organisms due to fires from lighting strikes or C) increase in diversity of organisms due to more competition

A) a loss of plant life from saltwater brought in by storm surge

Watershed

300

Which of the following is the most reasonable explanation of why a well drilled into an aquifer would fail to produce water? A) Pollutants have speed into groundwater B) Runoff containing chemicals has caused a dead zone or c) Over pumping has exceeded rainwater replenishment

c) Over pumping has exceeded rainwater replenishment