Earth Science Final

Describe the difference in stellar evolution of stars the size of our sun with that of stars 4+ times larger than our sun. Include all of the steps and the causes of each step. A nebula, an immense cloud of hydrogen gas and dust, condenses into smaller regions of matter. On occasion, one of these regions collapses under the force of its own gravitational attraction, often triggered by an outside force, like a nearby supernova-an explosion of a star. After the collapse of a cloud, atoms begin gravitating together to form a condensed center.

The condensed center is a protestor. As gravity pulls in more gas and dust, pressure builds, causing the protestor core to heat up. Clouds and matter begin to rotate around the protestor and flatten due to their rotation. They surround the protestor like a rotating disk. The protestor continues to grow and its core continues to heat. When the core is hot enough, nuclear fusion begins. The start of nuclear fusion is technically the beginning of a star’s life. Eventually, when the nuclear energy runs out, the star dies.

Depending on the size and mass of the star, it can go through many stages and die in different ways-one of those ways being a supernova. . Choose a region or landscape, describe the landforms in it, the drainage pattern, how the geology influenced the landscape, and the sacrificial processes that influenced it as well. Much of the region of western New York State north of the Pennsylvania border has dendrites drainage because rock layers are flat and there are few faults or folds to divert streams.

A region that has prominent parallel and perpendicular faults, repeated folds, or a strong rectangular Jointing pattern will display a rectangular drainage pattern. Anoints are cracks in bedrock along which no significant movement has occurred. They may be related to expansion or regional forces acting on bedrock. ) Streams seek the lowest areas of folds, fractured rocks along faults, or the weakest surface bedrock locations. Annular drainage is a pattern of concentric circles that are connected by short radial stream segments.

This type of drainage occurs in an eroded dome A radial drainage pattern resembles the spokes of a wheel. Streams flow away. Climate is the other major factor in landscape development. A humid climate favors chemical weathering, which produces rounded, less angular landforms. Most of the hill slopes of New York State are rounded and gentle because f the relatively humid climate. A moist climate also allows plants to grow and protect soil from erosion. Desert areas sometimes have a stepwise profile, with flat hilltops and terraces separated by steep escarpments.

The climate of New York State does not change very much from place to place. All of New York has a moist, temperate, mid-latitude climate. Therefore the landscape differences in New York State are not the result of differences in climate. The variations seen in the New York landscape are caused by geological factors. 6. Link Ocean currents and the weather conditions of 3 specific regions. In each case, describe how the weather patterns of the place are influenced by one or more ocean currents.

Winds, water density and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth’s rotation results in the Acropolis Effect which also influences ocean currents. Similar to a person trying to walk in a straight line across a spinning Merry-Go-Round, winds and ocean waters get deflected from a straight-line path as they travel across the rotating Earth. This phenomenon causes ocean currents in the Northern Hemisphere

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to veer to the right ND in the Southern Hemisphere to the left.

Rica, Chile lies within one of the driest regions on Earth called the Tacoma Desert. Ocean currents keep clouds and fog Just off the coast, so most rain falls into the nearby ocean. Dethroned, Norway has a temperate climate. Summers and winters are remarkably mild for their latitude. Rainfall is very heavy. The local harbors are free of ice most of the winter. Seattle, Washington has a mild climate with temperatures moderated by the sea and protected from winds and storms by the mountains. This area is often cloudy with light rain.

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