Answer:
B) near sea level
Explanation:
Firstly, Isostasy is an equilibrium of adjacent lithosphere floating on the asthenosphere . The continental crust been solid floats on the denser mantle and balance the equilibrium between the portion on the mantle and the elevated parts.
The higher it elevation on the lithosphere or continental crust the more portion of the crust that sinks into the aesthenospere to balance the equilibrium. Therefore to balance a 40km thickness of continental crust requires more portion sinking into the interior of the earth(mantle) .
Both continental crust(40km and 20km) will be near sea level to be in equilibrium.
Answer:
Power your home with renewable energy. ...
Weatherize, weatherize, weatherize. ...
Invest in energy-efficient appliances. ...
Reduce water waste. ...
Actually eat the food you buy—and make less of it meat. ...
Buy better bulbs. ...
Pull the plug(s).
Answer:
The theory of plate tectonics is based on the movement of the tectonic plates by the convection currents, and this has led to the constant change of the physical landscape on Earth.
Explanation:
The theory of plate tectonics suggests that Earth's crust is divided into numerous pieces, called tectonic plates, and they are constantly moving because of the convection currents in the mantle. The convection currents are actually the ones responsible from break up the crust, and they are a circular movement in the mantle, where the cooler and denser material drops down, while the hotter and less dense material is pushed up and creates huge pressure on the crust.
Because of the pressure of the convection currents, the tectonic plates are in constant motion in a certain direction, creating three different types of plate boundaries, convergent, divergent, and transform plate boundaries. The different interactions between the plates have led to the creation or destruction of all sorts of landforms, from mountains and volcanoes, plateaus and valleys, lakes, and ocean basins... The movement of the plates throughout the geological past has led to the formation of supercontinents where the vast majority of Earth's crust has been connected, but also to breaking apart of them and continents scattered around the globe far away from each other.
Answer: China, China of South-East Asia made rapid economic growth.