Chine did the only one child policy to reduce overpopulation. I think the second question is just a matter of opinion I'm not sure. In my opinion, I think that the government should intervene in population growth because most of the world's problems link all to overpopulation.
Answer:
A current in a fluid that results from convection; Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks.
The Basin System of Irrigation was d<span>eveloped thousands of years ago.
It is now used only in parts of southern Egypt and northern Sudan. It only supports one main crop because it is dependent on the annual flooding of the Nile.
TRUE :)</span>
Plates at our planet's surface move because of the intense heat in the Earth's core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior to the planet's surface.
hoped this helped.