While the US was technically not in the war, they were still involved and supporting the Allies. The atomic bomb was much closer to the end of the war, so we can rule out this one as well. The answer, "to cripple the U.S. Navy's fleet in the Pacific is the most logical and sound answer.
The answer is 'C'(less mysterious)
Mental disorder would designs for behavioral or mental side effects that sway numerous zones about an aggregation.
In the beginning of eighteenth century improved medical knowledge in this way the medical science,surgery and diagnosis are also improved.
Psychological disorder remain not a big issue it became doubtless as the treatment of psychological disorder is become powerful.
The energy decreases as you move through the trophic levels from the bottom to the top of the energy pyramid. This is because the energy is used up by the organisms at each level.
Answer:
We bought a<em> giant portion of land</em> on the New world, causing this to double the size of land we own now. secondly we get more materials to work with, possibly more land to being more farms or herds or meats. Thirdly the cost what decently high, it also meant more land to defend from others, this means it'll cost more as well since we have to defend it as well. I believe the purchase was bigger than exploration due to this increasing materials, and land, but the exploration caused Us to find more India tribes, and a bit about them and more about the land, but again this could've happened, not in the same way but still happened while we were expanding