Spain and Portugal competed over territory in the Americas as a result of the voyages of Ferdinand Magellan.
Vasco da Gama.
Bartolomeu Dias.
Christopher Columbus.

The correct answer is D. Christopher Columbus

Explanation:

Christopher Columbus first sailed to America in 1792 becoming the first European to officially discover the Americas and create a European settlement in this continent. This important discovery was known all over Europe and this motivated many European countries including Portugal to start own explorations to create settlements in the new continent. Due to this, Portugal, Spain, and other countries began a competence to colonize the territory of the Americas as this was a way to increase the wealth of European countries.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.

the answer is c. according to past decisions, free speech is not unlimited.