Why did european exploration of the western hemisphere accelerate in the late 15th century?
a) orders of the kings and queens of europe
b) improvements in sails, ship hulls, and navigation equipment
c) a desire to find new markets in which to sell european goods
eliminate
d) the need to find new places to send their growing populations

B)improvements in sails, ship hulls, and navigation equipment  

Explanation:

During the fifteenth century the Portuguese chose as an issue of strategy to test in the area. In view of that experience they attempted another ship configuration, called the caravel. These boats were fixed so they could utilize either square or lateen sails, the two of which were conveyed. They likewise utilized various poles, which helped mobility and included speed when cruising at a point to the breeze.  

With caravels the Portuguese discovered they could really cruise straightforwardly into the breeze by "attaching" . This gave them the certainty to go further and further.  

Then another new ship configuration was presented, the carrack. These were bigger that caravels, and had raised decks fore and behind that could hold gigantic gun.

The Portuguese, at that point the Spanish, and later others, utilized caravels to discover new ocean courses to the Orient, and found "new" arrives in the Americas. Carracks let them convey the freights, pioneers, warriors and capability they expected to misuse these new routes and new lands.

the dominoes began to fall. the surrender at appomattox took place a week later on april 9. while it was the most significant surrender to take place during the civil war, gen. robert e. lee, the confederacy's most respected commander, surrendered only his army of northern virginia to union gen. ulysses s. grant

explanation:

well let's see i know a little about the fall of the roman empore but what to say i do not have a clue of what to say. (that's 28 words) i learned about it in social studies it was quite boring really my teacher talks a lot, like a lot then gives us a bunch of work sheets not too many though.( that's 60 words)i actually almost fell asleep in class of course i really like that teacher of course she is really nice. i actually don't remember much from that class i got a b without any notes (it was an open notes test)(that's 95 words) i'm wasting time but i've gone too far to stop now i'm sorry i haven't said really any thing on the topic at all sorry not sorry haha jk.(that's 125 words ) (mike drop)