7. Which statement from the article best supports the idea that Apa is a part of a movement to protect Mount Everest's ecosystem?
More than just an attempt to break his own record, Apa's expedition, named Eco Everest Expedition 2009, was a victorious environmental campaign to clean up the slopes of Everest.
He made three unsuccessful tries before making it to the top in May 1990 and has been climbing to the summit nearly every year since.
Thereafter, many Sherpas became guides for foreign climbers because of their exhaustive knowledge of the mountain and the relative ease with which they dealt with high altitudes, having grown up in the mountains.
8. Apa, who like many Sherpas goes by only one name, arrived at the summit of the world's highest mountain at 8 a.m. on May 21, 2009. Which question is not answered by the article?
How many times did Apa try to reach the top of Everest before his first successful summit?
How many other people in Apa's family became guides on Mount Everest?
Why did some Sherpas begin guiding climbers instead of being herders and traders?
Why was Apa's most recent Mount Everest climb considered a victorious environmental campaign?