Horn
Explanation:
Glaciers are powerful erosion forces as the occur. Erosion is the removal of products of weathering on the earth surface. Some of the feature of glacier erosion are:
- Glacial horns
- striations
- cirques
- glacial horns
- arêtes
- U-shaped valley e.t.c
Glaciers erode when they expand or slowly move during period of lower temperatures.
Glacier horns forms when glaciers eroded the sides of a peak leaving a sharp pointed structure behind.
Learn more:
wind erosion brainly.com/question/2115729
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Answer: hydroelectric dams
Explanation: Enormous energy is stored in water held back by hydroelectric dams. The energy is transformed into (a form of kinetic energy) as it falls across the dam. The falling water strikes the blades of a turbine and makes them spin, and the then turns the shaft of a generator.
Both valves are closed during the power stroke.
While the fuel is burning in the cylinder, you want
all the force of the expanding gases to push the
piston down ... you don't want any of the gases
or their pressure escaping.
If either of the valves was open, even just a crack,
then part of the gases would go blooey out the valve,
and some pressure would be lost that's supposed to be
pushing the piston.
