About 260 million years ago, Earth's continents pushed together to form the supercontinent called Pangaea.
Many people have listened of Pangaea, the supercontinent that included all continents on Earth and started to break up about 175 million years ago. But before Pangaea, Earth's landmasses pulled apart and smashed back together to form supercontinents continually. Pangea, also spelled Pangaea, in early geologic time, a supercontinent that included almost all the landmasses on Earth.
Scientists believe that Pangea busted apart for the same reason that the plates are moving today. The movement is compelled by the convection currents that move over in the upper zone of the mantle. This action in the mantle causes the plates to move gradually across the surface of the Earth. Pangea was encircled by a global ocean called Panthalassa, and it was totally constructed by the Early Permian Epoch (some 299 million to about 273 million years ago).
Pangaea Proxima (also called Pangaea Ultima, Neopangaea, and Pangaea II) is a potential future supercontinent configuration. Consistent with the supercontinent cycle, Pangaea Proxima could happen within the next 200 million years.
Although so-called spreading centers (linear boundaries between diverging plates on the sea floor characterized by rising magma) have been shown to exist, an description of how mantle convection actually works remains elusive to this day. Everyday geology has shown that Pangea did actually exist.
To learn more about Pangaea, refer
#SPJ2
Answer:
The continental margin of the U.S. Atlantic coast is a__Passive__continental margin, and the continental margin off the west coast of South America is an__Active__ continental margin.
Explanation: Inactive mainland edges create along coastlines that are not structurally dynamic, including a great part of the Atlantic Ocean coastline
Answer:
the center of the earth, the north and south poles, the equator and the Prime Meridian.
Explanation:
To obtain a precise latitude, map makers use 4 universal well-known points of reference that make unanimity among the science community, to ensure consensus.
Those reference points are:
1.) the center of the earth: that is used to calculate the radius of the circles and the various angles to draw the latitude lines.
2). the north and south poles: since the latitude lines have to reach them, starting from the Equator.
3.) the equator: that's latitude 0, so it's a pretty important reference point.
4.) the Prime Meridian, as a perpendicular line for the latitude "rings" and other calculations.
And the same reference points are also used to calculate the longitudes as well.
Leaders must consider how one type of policy may affect the other since they relate.
The president and Senate are the only groups making decisions on these policy issues.
Officials are separated by which type of policy they work on and ignore the other type.
the answer is Leaders must consider how one type of policy may affect the other since they relate.
Answer: wind energy spins the blades than the blade spin the genrator
making energy. The solar energy uses solar penels wich make energy wich can be stored.
Explanation:
This answer may be wrong or cheated.
Plate tectonics is the correct explanation for why earthquakes occur. Thus, Option (A) is correct.
Plate tectonics is a scientific theory that describes the movement and interaction of large sections of Earth's lithosphere, known as tectonic plates. The Earth's crust is divided into several of these plates, and their boundaries are not static, but constantly shifting.
At the plate boundaries, there are three main types of interactions: divergent boundaries (plates moving apart), convergent boundaries (plates colliding), and transform boundaries (plates sliding past each other).
These interactions create immense forces and stress within the Earth's crust. When the accumulated stress exceeds the strength of the rocks along the plate boundary, it leads to the sudden release of energy in the form of seismic waves, resulting in an earthquake.
The movement and collision of tectonic plates can cause faults, fractures, and displacement in the Earth's crust, which is the primary source of earthquakes. As the plates continue to move, stress builds up along the faults until it is eventually released in the form of seismic activity.
Thus, Option (A) is the reason why earthquakes occur on Earth, as plate tectonics governs the movement and interactions of tectonic plates, leading to seismic activity.
Learn more about the Plate tectonics here:
#SPJ6
Earthquakes occur because of _____.
A)plate tectonics B)cracks in the crust C)landslides D)volcanoes
Earthquakes occur because of plate tectonics .