Answer:
convection currents are the result of differential heating
It was actually “The Soviet Union and its collapse hindered development.” Hope this helps!
The answer of how it is convert is the sun generates energy
by slowly contracting in size; converting gravitational potential energy into
thermal energy and this is called gravitational contraction. Gravitational collapse is the narrowing of an
astronomical object due to the effect of its own gravity, which tends to draw
matter inward toward the center of gravity.
