LANDFORMS
A U-shaped valley is formed by
What is a glacier?
These landforms are the result of ____________.
Canyons, rock archer, sea arches, gorges, beaches, barrier islands, V-shaped valleys
What is water?
Rocks and soil on top put pressure on sediments and reduce the size or volume.
What is compaction?
Fuels formed over millions of years from the remains of ancient plants and animals; examples include coal, petroleum, and natural gas.
What is fossil fuels?
What is the main process that formed the Grand Canyon?
What is "A river flowing through the mountains for millions of years that carved the canyon."
A delta is the result of
What is deposition?
The process by which dead plants and animals decay or rot.
What is decomposition?
A physical structure on Earth that occurs naturally
Sand dunes are created by
What is strong winds.
U-shaped valleys are the result of
What is glaciers or ice?
The process by which weathered and eroded material is deposited by wind, water, and ice.
What is deposition?
Process by which exposed rock is broken down by rain, frost, wind or other element of weather
What is weathering?
On a delta, the tides along the shore can
What is change the size and shape of the delta over time.
1. The remains of microscopic ocean plants and animals become part of sea floor sediment
2. Many layers create intense heat and pressure.
3. Over millions of years, the intense heat and pressure turns the plants and animals into ______ and __________.
What is oil and gas?
The process of binding and hardening of sediments into hard rock
What is cementation?
An extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, and sometimes descending from high mountains
What is glacier?
The size and shape of a delta can change over time depending on the amount and size of ____________ carried by rivers and streams.
What is sediments.
1. Remains of plants accumulate in wet environment
2. Many layers create intense heat and pressure, forming peat
3. Over millions of years the heat and pressure cause the peat to change into___________.
What is coal?
The movement of weathered material by wind, water, or ice
What is erosion?
Materials such as sand and rocks that are deposited at the bottom of a body of water or where a river runs into the ocean
What is sediment?