The correct answer of the given statement above whether it is true or false would be TRUE. It is true that the Andean nation of Bolivia is poor, but but<span> rich in natural attractions that fuel a growing ecotourism economy. </span><span>Bolivia is named for Simon Bolívar. He is the liberator of much of South America that is poor, mountainous, and landlocked. Hope this answer helps.</span>
A. S waves are also called secondary waves
Answer: In Medieval Europe, knights pledged loyalty to vassals, who in turn pledged theirs to powerful lords, and serfs labored in the fields.
Explanation:
A rigid hierarchy refers to one where people who are born into a certain position in life, find it quite hard to move from it or rather one where there are different social classes and people had to be classified in one class for the system to work.
The system during medieval times was much like this. Social classes existed that determined a person's worth in society such as the knights, vassals, Lords and Royals. There was also the serfs who were considered the lowest in the hierarchy.
In a nutshell, Antarctica is experiencing some drastic changes. The most drastic of which include climate change, where the climate is getting hotter, due to some natural causes. The result of this is the ice melting which can make some species such as polar bears, penguins, and seals extinct, due to not having anywhere to migrate to, them not being 100% sea animals.
Antarctica is located in the south pole of the Earth, directly under the north pole (Arctic). These changes are also present in the arctic.