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Earth Systems Review. January 23, 2013. 1. At the mouth of the Brazos river, there are piles of sand and small pieces of gravel. What landform is being create here? A. cave B. mountain C. delta D. valley. Look at the picture of the mountain valley.

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Earth systems review

Earth Systems Review

January 23, 2013


1. At the mouth of the Brazos river, there are piles of sand and small pieces of gravel. What landform is being create here?

A. cave

B. mountain

C. delta

D. valley


Look at the picture of the mountain valley
Look at the picture of the mountain valley.

A wide, U-shaped mountain valley is evidence of which of the

following?

A. The high energy of eroding water in a river

B. The erosional ability of moving ice in a glacier

C. The sand blasting capabilities of wind

D. The power of extreme temperature variations on the

weathering and erosion of bedrock


A delta is made of sediments deposited at the mouth of a river.

The delta is formed when –

A. moving water slows down

B. blowing winds cool the land

C. drifting clouds produce rain

D. crashing waves erode soil


Which forces create landforms such as deltas, dunes, river.

and canyons?

A. Volcanic eruptions

B. Earthquakes and landslides

C. Planetary movements

D. Moving wind and water


Sedimentary rocks form when broken bits of other rock are river.

deposited and then –

A. buried and squeezed and cemented together

B. melted by the heat of the earth’s core

C. completely dissolved in salt water in the ocean

D. used by humans as a natural resource


Fossil fuels form in sedimentary rocks when – river.

A. plants use the nutrients in sediments to grow

B. organic matter is buried along with sediments

C. rivers carry sediments down mountainsides

D. sediments are used by humans as a resource


Finding the fossils of trees in an area that is currently a river.desert without much life might tell us that the area, millions of years ago –

A. was heavily eroded by strong winds

B. received enough rain to support a forest

C. suffered very powerful earthquakes

D. was destroyed by the impact of meteorites


Fossils are best used as evidence about which of river.these?

A. The processes that change rocks over time

B. How best to conserve natural resources

C. The plants and animals that lived long ago

D. What forces drive the water cycle on Earth


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