Question

5) What type of breakfast is taken by mountaineers before
trekking? How do they sleep at night in high altitudes?​

Answer 1

Answer:

They should eat some protein and calcium rich food. They should also eat some warm food which keep them warm in high altitude like meat and milk.

Mountaineers keep with them a sleeping bag which protects them from cold.

Answer 2

Answer:   people eat snacks  with carbohydrates (fruit, granola bar, smoothie etc) . sometimes they also eats snacks which have proteins like peanut butter , yogurt , meat ,etc)   as it helps in stabilizing blood sugar for a long period of time.