Constructive Processes
A deposit of sediment that builds up at a river's mouth
delta
What is the removal of the top layer of land by water from irrigation, rainfall, snowmelt, runoff, and poor irrigation management.
Water Erosion
Beaches that have eroded are reclaimed through
Beach Nourishment
An earthquake is caused by a _________________ in the rock that makes up the Earth's crust.
Break
Earthquakes happen along a
fault
A hill or ridge formed by sand typically found in deserts or along coastlines
sand dune
Breaking down of rock at or near the Earth's surface is called:
weathering
a soil conservation practice where land is planted, and cultivated along the natural contours of the land instead of up and down the slope
Contour Plowing
Are earthquakes and volcanoes constructive or destructive processes?
The are BOTH constructive and destructive.
What is the purpose of a storm drain?
They prevent streets from flooding when it rains.
sand, soil, and rocks are all examples of:
sediment
What is the movement of weathered rock from place to place
Erosion
What is the purpose of a groin?
To stop beach erosion
What is the hot liquid inside of a volcano?
magma
Name the three layers of the Earth
crust, mantle, core
Name a landform that is created by glaciers
What pulls pieces of rock downhilll to create a landslide?
Gravity
a large, irregular-shaped piece of the Earth's crust that moves very slowly and can interact with other plates
tectonic plate
What is magma called with it reaches the earth's surface?
lava
The area where two or more tectonic plates meet
Plate boundary
Explain how a glacier is both a constructive and destructive process.
Glaciers destruct the Earth by carving into canyons. Glaciers construct the earth by dropping off sediment in various places.
This geologic feature in Yellowstone National Park was caused not as a result of glaciation, but by erosion
The Grand Canyon
What is a protective structure built along a coastline to mitigate the impact of waves and prevent coastal erosion.
Seawall
What are devices that can detect vibrations during an earthquake
seismographs
Which volcano erupted in May 1980 in the U.S.?
Mt. St.Helen