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Plate tectonics.
The earths position in relation to the sun along with air moving down from Canada to the United States causes the cold winter winds that chill much of the United States.
Continental Drift.
At the temperatures and pressures experienced at Earth's surface, substances can undergo phase transitions between solid, liquid, and gas states. For example, water can change from solid ice to liquid water or from liquid water to gaseous water vapor. This phase transition is primarily dependent on the substance's melting and boiling points under normal atmospheric conditions.
Surface coal mines were located primarily in the West, with the largest surface mines in the world found in the Powder River Basin, located in Montana and Wyoming.
The Sun.
Plate tectonics.
The earths position in relation to the sun along with air moving down from Canada to the United States causes the cold winter winds that chill much of the United States.
uniformitarianism
the change from a solid to a gas (without changing into a liquid first) is known as sublimation "Sublimation is an endothermic change (requires energy from its surroundings). As dry ice sublimes, the cold carbon dioxide vapor causes water vapor in the air to condense and form clouds."
There are two theories, which are sometimes combined into one. One main theory is that the water was degassed from Earth's mantle while the other theory states that our water came from the impacts of comets long ago
Boundaries on Earth's surface are called geographic boundaries. These boundaries can be natural, such as mountains, rivers, and coastlines, or they can be artificial, such as borders between countries or states. Geographic boundaries help define territories, separate landforms, and demarcate political jurisdictions.
Yes, matter can change states after a physical change.
Continental Drift.
At the temperatures and pressures experienced at Earth's surface, substances can undergo phase transitions between solid, liquid, and gas states. For example, water can change from solid ice to liquid water or from liquid water to gaseous water vapor. This phase transition is primarily dependent on the substance's melting and boiling points under normal atmospheric conditions.
A change to the untied states constitution is an amendment.
Carolus Linnaeus a Swedish Botonist.