Answer:
I believe it's two, gunpowder and crossbow
Explanation:
The soonest realized crossbows were designed in the main thousand years BC, not later than the seventh century BC in old China, not later than the fourth century BC in Greece (as the gastraphetes).
Gunpowder was developed in China at some point during the main thousand years AD. The most punctual conceivable reference to gunpowder showed up in 142 AD during the Eastern Han administration when the chemist Wei Boyang, otherwise called the "father of speculative chemistry", expounded on a substance with black powder like properties.
The most significant thing about Obama's election in 2008 was that he was the first black president to ever hold the presidency.
<span>The main way that assistance is provided to states is through the grant system. If a state cannot generate enough income on its own and needs federal help, they can receive a Federal Grant.</span>
If there was a sudden, significant event in the area (such as a volcanic eruption) then a population with higher biodiversity is more likely to contain at least 1 species which will be adapted enough to survive in the changed environment than an area with lower species diversity.<span />
Answer:
Free trade increases prosperity for Americans—and the citizens of all participating nations—by allowing consumers to buy more, better-quality products at lower costs. It drives economic growth, enhanced efficiency, increased innovation, and the greater fairness that accompanies a rules-based system.
Explanation:
Free trade is a trade policy that does not restrict imports or exports. It can also be understood as the free market idea applied to international trade. In government, free trade is predominantly advocated by political parties that hold liberal economic positions while economically left-wing and nationalist political parties generally support protectionism, the opposite of free trade.
