Gravity and heat is thought to be an important cause of plate tectonic motion.
The core heat of the Earth supplies the fuel necessary for plate tectonics, whereas the "ridge push" and "slab pull" gravitational forces are what really move the plates.
According to the widely recognized scientific hypothesis known as tectonic activity, the Earth's oceanic crust is made up of several huge plate boundaries which have been steadily shifting.
Because of the high heat so at Earth's core, which leads the hot magma in the underlying mantle to move, bands at the crust shift. The decay of nuclear material is assumed to be the basis of the heating. A part of a plate might pull the balance of the wedge along, according to some scientists, while others contend that near the surface basalt at spreading centers pulls the plates.
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b. summer
c. fall
d. winter
Answer:
It'll be Fall
Explanation:
This is correct because the Southern and Northern hemispheres are complete opposites of each other, and Fall is the opposite of Spring.
Answer:
B
Explanation:
biome ... ecosystem
The correct answer is - days or years before the major earthquake.
The foreshocks always come before the major earthquake. They can appear only a single day before it, weeks, months, or even years. It is a nice indicator that something bigger is coming, so if people are wary enough they can avoid the devastating effects of the major seismic activity afterwards.
For example, we can take the foreshocks and the major earthquake in Ohrid, Republic of Macedonia, in the summer of 2016, where the foreshocks started about two months earlier, and they were present every day for those two months, slightly increasing in intensity, until the major earthquake of 6.9 magnitude according to the Richter scale came.
Small foreshocks that precede a major earthquake occur days or years before the major earthquake.
Further Explanation:
Earthquake refer to sudden shaking of the ground violently due to volcanic action or movement within the crust of the earth.
Foreshock: It is an earthquake that occurs before occurrence of a large seismic event or earthquake. It is related to space and time. The observation of the foreshocks that are associated with the earthquake reveals that the foreshocks forms a part of the preparation process to nucleation. When earthquake rupture, the process forms a cascade of events, starting from small events like foreshocks that triggers the large events and continue till main shock is triggered.
Example: The 2002 Sumatra earthquake is considered as the foreshock for the 2004 Indian Ocean earthquake and time difference between two events is more than two years.
Therefore, small foreshocks that precede a major earthquake occur days or years before the major earthquake.
Learn more:
1. Learn more about layers of Earth
2. Learn more about earthquake
3. Learn more about climate zones
Answer details:
Grade: High School
Subject: Geography
Chapter: Landforms
Keywords: Small foreshocks that precede a major earthquake occur, from the day of the major earthquake to days after the earthquake, only on the day of the major earthquake, days or years before the major earthquake, only on the day before the major earthquake