Which of the following best describes the problem facing oil-poor nations who are also highly developed? a. their forms of government inhibit them from making trade deals with foreign powers.
b. most of these countries are located on a single continent.
c. these countries may rely too heavily on foreign powers who control large oil deposits.
d. they must increase their military presence in order to maintain control of oil-rich territories.

the correct answer is - end permian.

the end of the permian was marked by the biggest mass extinction out planet had ever witnessed, so no wander that this period has been given the nickname of ''the great dying''. around 96% of the species died out, and it was caused by multiple natural catastrophes, including massive super volcano explosions and lava flows, huge amounts of co2 released into the atmosphere, as well as methane from the algae, and that contributed to acidified and stagnant oceans. it is thought that it set life on earth backwards for about 300 million years.