1, 3, 4, and 7 are true the rest are false.
In most empires, trade is important as it is a vital interaction for every country in the world. Without trade, countries would have to provide their own resources for every aspect in their daily life. Take for instance items such as food, clothing and technology.
They often aligned themselves with other developing nations to create a bloc. They have the power of one super power nation, but they are still able to speak their countries opinions. Either wise, they would be completed over powered.
Assuming you mean "undeveloped countries", then the <span>industry in developed countries compares favorable to that of undeveloped countries, since develop countries almost always tend to have more modern and thriving economies. </span>