Answer: seafloor spreading and subduction magmatism
Explanation: Continental crust are termed as the crust destroyed by plate tectonic process mostly.Continental crust usually lies above sea level and because of this existence of land life to evolve from marine life possible.
Seafloor spreading is a type of process in which tectonic plate of Earth's lithosphere separate from one another. Subduction is also a process related with continental crust that occurs when tectonic plates collide with each other rather than getting apart.
Urbanization refers to those areas of urban that can grow by increasing human population or migration of people from rural to urban areas & then it impacts our environment like deforestation, habitat loss and decreased of biodiversity.
Air pollution due to the high concentration of traffic and industries. Increased a greenhouse gas due to which it emissions a high levels of energy consumption and transportation. Urbanization affects our environment by improper or insufficient waste or smelly problem in urban areas.
Light pollution can be a ecological issues with different consequences. loss of green space and increase of heat island is also effected. It also affect our health due to increased risk of disease by overcrowding .
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The circumference of that circle is about 27.02.
Valence electrons, then, are electrons in the outermost shell of the atom that determine an atom's or group's ability to bond with others. In chemistry, a group refers to two or more atoms that are specifically arranged.
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Qualitative meaning -C is the symbol of atom of element carbon. ... This means symbol stand for a specific element.