The movement that led to the independence of Bangladesh was very similar to the movement that led to the formation of Pakistan. This is because the separation of these nations can be traced back to the independence of India. When India became independent in 1947, Pakistan separated from the new nation. Similarly, when Pakistan gained its independence from India, Bangladesh separated from the new country. Therefore, these two processes can be seen as subsequent and parallel.
<span>a. gloabal wind belts</span>
The main mechanism through which the layering happened is gravity: it pulled the heavier, denser material to the center, leaving the less dense material on the surface.
The material that was on the outside cooled quicker, but this was the result, not the cause.
The answer is
<span>2) Gravity caused more-dense material to move toward the center of each planet.</span>
LEDC means that a country is a developing country (as opposed to a developed country). This distinction is connected to the Brandt line which divides the world into developed and developing country, and India is south of this line (=LEDC, less developed country). Some reasons for this is malnutrition, high child mortality and short life expectancy.
The answer is Bahrain and Kuwait, both sources provide some evidence.
"https://en.wikipedia.org/wiki/History_of_Bahrain"
"https://en.wikipedia.org/wiki/Sheikhdom_of_Kuwait"