The lithosphere, which is the rigid outermost shell of a planet (the crust and upper mantle), is broken up into tectonic plates. The Earth's lithosphere is composed of seven or eight major plates (depending on how they are defined) and many minor plates. Where the plates meet, their relative motion determines the type of boundary: convergent, divergent, or transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along these plate boundaries. The relative movement of the plates typically ranges from zero to 100 mm annually.[2]
Tectonic plates are composed of oceanic lithosphere and thicker continental lithosphere, each topped by its own kind of crust. Along convergent boundaries, subduction carries plates into the mantle; the material lost is roughly balanced by the formation of new (oceanic) crust along divergent margins by seafloor spreading. In this way, the total surface of the lithosphere remains the same. This prediction of plate tectonics is also referred to as the conveyor belt principle. Earlier theories, since disproven, proposed gradual shrinking (contraction) or gradual expansion of the globe.[3]
Tectonic plates are able to move because the Earth's lithosphere has greater strength than the underlying asthenosphere. Lateral density variations in the mantle result in convection. Plate movement is thought to be driven by a combination of the motion of the seafloor away from the spreading ridge (due to variations in topography and density of the crust, which result in differences in gravitational forces) and drag, with downward suction, at the subduction zones. Another explanation lies in the different forces generated by tidal forces of the Sun and Moon. The relative importance of each of these factors and their relationship to each other is unclear, and still the subject of much debate.
The opinion may varies on this question, here are my point of views.
The correct answer would be:
A) spread of innovations
B) cultural blending
C) damage to some cultures
Let's look into them one by one:
A) spread of innovations
- As the technological skills on different areas spread to different countries, people are able to learn and create based on the new knowledge hence enhancing innovations across the world.
(- However,some might held a different opinion as the innovations are concentrated in powerful nations but not the third world countriedls. But what I believe is that under the spread of information, third world countries have chances for innovations as well therefore supporting this claim.)
B) cultural blending
- Under globalization, it is easier for people to travel around the world, bring their own culture and influence to a foreign place, resulting in the blend of culture. For example, you can see many international brands across the globe even in Asia, while you can find China town and production of Asia in places like Europe and America.
C) damage to some cultures
- This is also true. As globalization prevails, some cultures are considered less important as the living mode of people has changed. Languages for example, inder the influence of international language such as English, some minorities dialect are disappearing or the use is decreasing rapidly.
D) increase in death rate
- This is very unlikely to happen. As globalization brings the technology around, the medical advancements are also able to be brought to different place. For instance, the use of xray, or even cancer treatment, are spreaded. This has undoubtedly helped expanding the life span of people.
Therefore the correct answer would be:
A) spread of innovations
B) cultural blending
C) damage to some cultures
Hope it helps!
It is classified as a meteorite.
Answer:
Asia, Australia, North and South America
Explanation:
