Geography

over the past 5000 years the Mississippi river had how many distinct delitactic formation?

7 or 8

Which of the following regions is probably the most tectonically active at this time?

Himalayas

Continental crust is basically___ whereas oceanic crust is basically__

granite; basalt

The principles of buoyancy and balance, when applied to Earth's crust, helps us to explain fluctuations in Earth's outer crust, a property known as

isostasy

Frost wedging is an example of ________ weathering processes

physical

El Niño

the above-average sea-surface temperatures that periodically develop across the east-central equatorial Pacific

Oceanic crust subducts under continent because

The continental crust is less dense

Which of the following is likely to occur if the gradient of a stream increases?

The stream will begin to erode its channel and/or its banks.

Which of the following is the correct sequence of climate from the equator to the pole?

Tropical --> Desert --> Mesothermal --> Microthermal --> Polar

Which of the following lists of processes are in the correct sequence as to their occurrence in nature?

Weathering, erosion, transport, deposition.

as a discharge of stream increases what is happening

Width, depth, and velocity all increase.

The dynamic equilibrium model refers to

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

What is the correct sequence of divisions in the geologic time scale, from largest to smallest?

eon, era, period, epoch

Which of the following is not a type of physical weathering process?

hydrolysis

entrenched profile

is a river or stream that flows in a narrow trench or valley cut into a plain or relatively level upland

Which of the following is incorrectly matched?

karst towers - formations created by the merging of stalactites and stalagmites

The process that breaks down rock at the Earth's surface through disintegration of rocks into mineral particles or dissolving it into water is

weathering

Which of the following is incorrectly matched?

weathering —exogenic breaking and dissolving the crust

Longest river and largest river

Amazon river

Uniformitarianism assumes that

the same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time.

The degradation of a landscape by weathering, erosion, and transportation has an ultimate goal of reducing the landscape down to

Base level, namely sea level

Bed load is moved by

Both saltation and traction, but not suspension

Which of the following stream channel forms is likely to develop when aggradation greatly exceeds erosion?

Braided channels.

The total possible load a stream can transport is its____, whereas a stream's ability to move particles of specific size is its_____.

Capacity; competence.

Core areas of mantle, correct sequence

Crust, mantle, outer crust, inner crust.

Talked about two types of volcanos explosive and effluent which one is fast and which one is slow

EXPLOSIVE IS FAST AND EFFLUENT IS SLOW

Rivers east of the continental divide in the Rockies drain into the drainage pattern, why we have that kind of pattern

Gulf/Atlantic drainage.

How does the formation of a natural levee impact flooding?

Natural levees raise the height of the stream channel, reducing the amount of flooding that will occur on the floodplain

The side of a meandering river with a beach area is called a _____, whereas the side cutting into the bank is called a _____.

Point bar (deposit) ; Cut bank (erosion)

Stream drainage patterns are determined by which of the following?

Slope, differing rock resistance, climatic and hydrologic variability.

hypsographic curve is

a generalized curve showing Earth's surface by area and elevation in relation to sea level.

orogenesis refers to

a mountain-building episode that thickens continental crust.

What is a natural levee?

a ridge of flood deposits next to a river channel

kyoto protocol

an international treaty aimed at combating global warming; adopted in 1997, took affect in 2005.

The formation of karst topography,

calcium carbonate process of CARBONATION

If you followed the river from its headwaters to the ocean, you would observe the clarity decrease because of

changes in the amount of suspended load and an increase in amount of clay due to weathering of the load and influx of sediment into the river only.

Hydrolysis, hydration, oxidation, and carbonation are all examples of ________ weathering processes.

chemical

Exfoliation and pressure-release jointing are examples of ________ weathering

physical

hypsography

the branch of geography concerned with the determination and mapping of the relative elevation of areas of land.

Climate

the long-term atmospheric condition - including extremes that may occur

What is a floodplain

the wide, flat, low-lying area of land found on both sides of the river channel