please i want answer

[miss shaza]

why was it difficult to go down the crater ?



where did the professor think there would be plenty of air ?

[تامر لطفي]

when u read the text u will find nothing about how difficult going down the crater

i think the answer

Because it was a long and tiring descent


ur second question maybe

where did the professor think there would be plenty of water not air?

the answer is

in the western passage