1) The document is a student's English exam containing questions about a passage on Mountain Gorillas. 2) The passage describes Mountain Gorillas - how they live in family groups in the forests of Africa, eat plants throughout the day, and build nests to sleep in at night. 3) It notes that while the forests provide food and habitat for the gorillas, human activity like cutting down forests threatens them, with only around 500 Mountain Gorillas remaining today compared to 15,000 twenty years ago.