Who was the first to navigate to sail directly from europe to india? he was a portuguese explorer!

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

How would having more railroad tracks be advantageous during a war

Should the government in china restrict the rights to the media/social media? why or why not?