Answer:
hydrosphere,atmosphere,sand
Explanation:
hydrosphere is the liquid portion of the earth.
sand is formed through weathering i.e that breaking down of rock particles and other biological particles.
It’s Egypt! Trust me. I had the same question and it was right ;)
Lack of O2, hunger, hypothermia... Everything can be a problem when in Everest
Water changes forms through temperature change as it goes through the water cycle. It evaporates by being heated by the sun, it condenses by cooling as it reaches higher altitude. It precipitates when the cooled water becomes heavy, and the cycle starts all over again.