Why was there a decline in production levels between 1913 and 1921​

Crops such as flax and cotton simply were not grown. Between 1913 and 1920, there was an 87% drop in the number of acres given over to cotton production. Therefore, those factories producing cotton related products were starved of the most basic commodity they needed.

well that depends on how deep the hole is. you'd first go through te crust of the earth, then the upper mantle, then the lower mantle then the outer core, then the inner cor then you'd be stuck in the core to melt.