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the equator
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What happens at a mid ocean ridge?
The techtonic plates are pulling away from each other. Magma is forced twards the sea floor via convection currents. This results in "hot vents" where an entire ecosystem is based on chemosynthetic bacteria.
What are the seismic waves of the Earth's crust?
Rock under stress breaks at the focus, releasing energy and vibrations called seismic waves, which travel away from the focus, through Earth's interior, and across the surface. The three types of seismic waves are: Primary waves: The first to arrive at seismographs Secondary waves: The second to arrive at seismographs Surface waves: The last and most severe to arrive at seismographs
What factors determine how much of the sun's energy we receive in a given area?
the distance away from the equator (further away = less of the suns energy), and also the amount of cloud and type of cloud in that location (more cloud reflects more of the suns energy away from that location).
What two factors determine the amount of solar energy that an area receives?
Two factors that determine the amount of solar energy an area receives are the amount of atmosphere it has to travel through and the tilt of the Earth. The more atmosphere the solar energy goes through the less energy there will be when it hits the surface. Also, the tilt of the Earth determines the amount of solar energy because if you are tilted towards the sun you are a little bit closer, so the energy doesn't have to go through as much atmosphere as the side of the Earth tilted away from the sun. Hope this helps!
How can erosion wear away earth's surface?
Erosion is when a chemical reaction or physical occurence causes a surface to wear away, (whether it be the earth's surface or the surface of a cheese burger in the dump). Commonly, erosion of the earth's surface is caused when water and air brush the surface, causing small chunks of it to be washed away slowly until a noticable canyon has been made, or when water seeps into cracks in rocks and rests there until winter, when it becomes ice and expands, making the cracks get bigger and deeper.
What is the surface currents north of the equator are?
Because of the spinning of the Earth, wind and ocean currents closest to the equator will travel straighter. Wind and ocean currents further from the equator will deflect away from the equator.Ê
What are surface curents?
ocean currents that lead away from the equator. Examples: Gulf Stream and Brazil Current
How does the unequal heating of Earth's surface affect the ocean currents?
It affects ocean currents because the sun hits the equator directly unlike towards the poles where they get less sun because they are farther away.
Why do warm ocean currents cool as they flow along a coastline away from the equator?
Warm ocean currents cool as they flow along a coastline away from the equator because sand and minerals are transported by ocean currents away from the equator.
Ocean currents moving away from the equator bring what waters?
Ocean currents moving away from the equator bring warm waters.
How do deep currents affect climate?
The air of a region where the temperature is higher is warmer than the air of a region where the temperature is lower. As a result, the air will flow from the warmer region to the cooler region. This generates air currents.
Why is the surface temperature of the oceans more variable than the water near the ocean floor?
In order for temperature to change the involved heat has to have some place to go. The water at the bottom of the ocean is surrounded by ground and other water that are already at the same temperature. Where can extra heat go to? At the surface the air transports heat up and away so ocean heat can leak out (or in) to the water.
Which two ocean currents are both warm currents that primarily flow away from the equator?
Alaska current and Falkland current
What is transported when warm ocean currents cool as they flow along the coastline away from the equator?
Water
What causes the oceanic lithosphere to move away from the mid-ocean ridge?
it is caused by convection currents
Which direction does the air currents towards the poles or away from the poles?
Away from the poles because the air near Earths surface is warm.
How are currents useful for fishermen?
Sometimes the wind blows away the warm water on the surface of the ocean and is replaced by cold water from below. When this cold water rises up, it brings fish food, such as plankton, to the surface. Schools of fish gather to these places to feed and they make good fishing grounds. Also by travelling along the currents it saves time and fuel.
