The United States tried very hard not to be involved in the war. At first all they did was help out their allies with food and other supplies. They didn't actively join the war until December 7, 1941 when Japan bombed pearl harbor. They officially declared war against Japan and soon after Germany.
The toothbrush evolved over time and mainly out of necessity. Traces of the first toothbrush can be dated back as early as 3500 B.C.E. These bamboo sticks were then used just like a modern manual toothbrush to clean the teeth. Eventually, the Chinese version of the toothbrush made its way to Europe.
Answer:
look at explanation
Explanation:
Developed countries have higher living standards and more stable and better economy with less poverty. People also make more money. Developing countries have lower standards of livng with an unstable economy with poverty. Also there tend to be more rural areas in developing
Answer: around the yellow river valley
Explanation:
