Answer:
They could have decreased protectionism. Protectionism means that they limited free trade between nations and restricted trade of foreign goods. Protectionism is widely accepted as maybe the biggest reason for the development of the Great Depression and thus if the US had decreased it, it most likely would not have happened at all.
<span> the answer is parts could be replaced on a machine without replacing the entire machine.</span>
Islamic scientists developed Algebra.
They built the first observatory.
They introduced the modern day Hindu-Arabic numeral system.
The best answer for this question would be:
<span>A.
</span>Egypt conquered lands and formed a colony.
This colony led to the development of the Kingdom of Kush,
although this kingdom would only have lasted for less than a century because of
the expansion of the Neo-Assyrian empire in Egypt. The people of Kush continued
to survive later on in Nubia.
The first Europeans to have contact with the Ming Dynasty were the Portuguese.
It was Hongwu to rule first the Ming dynasty and had taken the Mongols out of China. The said Dynasty rose after the effort exerted by the Chinese to take away the Mongols who tried to invade. Ming dynasty was so full politically. The dynasty constitute of politically strict leaders
The trade during the Ming dynasty was based on foreign isolation that only the government can made trades with the foreign countries.