The center of the Earth is made up of two layers, the outer core and the inner core. The outer core is the third layer of the Earth. It is the only liquid layer, and is mainly made up of the metals iron and nickel, as well as small amounts of other substances. The outer core is responsible for Earth's magnetic field.
I think the answer is A.
But correct me if I’m wrong
I hope this helps :)
<span>The harvesting of rice is an economic activity that is most
common in Eastern Asia. The climatic condition of Eastern Asia is most suited
for the cultivation of rice. Many families are dependent on the cultivation and
harvesting of rice for making their livelihood.
The cultivation of rice is the principal activity for them. The cultivation of rice requires good amount
of rainfall. The climatic condition of this region helps in good production of
quality rice. The rice is often exported to make foreign currency. </span>
