ch 8

The majority of the river basin located in the Democratic Republic of the Congo is associated with which natural region? desert Mediterranean tropical rain forest tropical savanna highland

tropical rain forest

Other than the rock itself, the most important chemical substance needed for the majority of weathering processes is carbon dioxide. water. oxygen. nitrogen.

water

Which of the following is not exogenic in nature? weathering erosion batholith formation denudation mass wasting

batholith formation

The science that specifically studies the origin, evolution, form, and spatial distribution of landforms is geography. environmental chemistry. geomorphology. geology.

geomorphology.

Chemical weathering is greatest under conditions of lower rainfall, but higher temperatures. higher rainfall, but lower temperatures. lower rainfall and temperatures. higher rainfall and temperatures.

higher rainfall and temperatures.

The science of water and its global circulation, distribution, and properties is known as climatology. lithology. hydrology. geomorphology.

hydrology

Cone-shaped deposits of sediment often found at mouth of canyons in arid and semiarid climates are called alluvial fans. deltas. deposition. clastics.

alluvial fans.

The entrenchment of a river into its own floodplain produces backswamps. river deltas. alluvial terraces. natural levees.

alluvial terraces.

A slope is ________ if its strength exceed denudation processes and ________ if its materials are weaker than denudation processes. unstable; stable stable; unstable in disequilibrium; in equilibrium in equilibrium; in disequilibrium

stable; unstable

A landslide differs from a debris avalanche in that a land slide moves much more quickly than a debris avalanche. the materials in a landslide are not saturated with water. the materials in a debris avalanche are not saturated with water. a land slide moves much more slowly than a debris avalanche.

the materials in a landslide are not saturated with water.

If you live in an area that was flooded by the 100-year flood last year, you can conclude that you do not have to worry about another flood of that size during your lifetime. there is a 1% chance you could be flooded by the 100-year flood again this year. the next 100-year flood will occur in exactly 100 years. the next 100-year flood will occur in exactly 99 years.

there is a 1% chance you could be flooded by the 100-year flood again this year.

Of the world's largest rivers, which has the greatest discharge? Amazon River Chang Chiang (Yangtze) of Asia Missouri-Ohio-Mississippi river system Zaire (Congo) River

Amazon River

What physical feature serves as the drainage divide on the western side of the Amazon River basin? Patagonia Guiana highlands Pacific Ocean Andes Brazilian highlands

Andes

Which of the following rivers flows through areas of the United States that receive the LEAST average annual precipitation? St. Lawrence River Red River Ohio River Mississippi River Colorado River

Colorado River

Which of the following rivers has a high risk of flooding? Huang He Amur Mekong River Xi Brahmaputra

Huang He

Which of the following is NOT a type of physical weathering process? Hydrolysis Salt crystal growth Exfoliation Frost wedging

Hydrolysis

Which of the following is CORRECT regarding joints? Joint impede both physical and chemical weathering. Joints are small, localized fault planes along which movement occurs. Joints are fractures in rock that occur without displacement on either side. Joints decrease the amount of exposed surface area of rocks.

Joints are fractures in rock that occur without displacement on either side.

Which of the following rivers is considered a major inland waterway? Merrimack River Colorado River Rio Grande Red River Mississippi River

Mississippi River

Of the rivers listed, which is NOT an endangered or polluted river? St. Lawrence River Arkansas River Mississippi River Ohio River Rio Grande

St. Lawrence River

Which of the following landforms is INCORRECTLY matched with a drainage pattern? Volcano — radial Eroded dome — annular Topographically disrupted areas — parallel Folded mountain belt — trellis

Topographically disrupted areas — parallel

A braided stream is indicative of excess sedimentation. True False

True

The dynamic equilibrium model refers to a balancing act between tectonic uplift and rates of denudation by weathering and erosion in a given landscape. a theory involving the cyclic or evolutionary development of a landscape. a sequential development of landforms. an important concept first stated by William Morris Davis.

a balancing act between tectonic uplift and rates of denudation by weathering and erosion in a given landscape.

The dynamic equilibrium model refers to a sequential development of landforms. a balancing act between tectonic uplift and rates of reduction in a given landscape. a theory involving the cyclic or evolutionary development of a landscape. an important concept first stated by John Powell.

a balancing act between tectonic uplift and rates of reduction in a given landscape.

A yazoo tributary stream cannot join with the main river in an area because a natural levee on the main river prevents its joining. the yazoo flows in a different valley. a man-made flow control structure keeps the rivers separate. a small structural ridge separates the rivers.

a natural levee on the main river prevents its joining.

If Earth did not experience endogenic processes, the landscape would be rugged and of great relief as a result of uplift in the absence of weathering and erosion. be of very low relief as a result of weathering and erosion in the absence of uplift. consist of high mountains and hills with smooth, gentle slopes.

be of very low relief as a result of weathering and erosion in the absence of uplift.

In the Andes Mountains of South America, entire towns of thousands of people have been buried suddenly when water and loose materials traveled downhill as a viscous fluid. This type of catastrophic event is known as a slump. rock fall. slide. debris avalanche. lahar.

debris avalanche.

Processes that are related expressly to streams and rivers are termed lotic. geomorphic. fluvial. limnetic.

fluvial.

Human-induced mass movements produce a category of processes known as translational slides. debris flows. scarification. denudation.

scarification.