Un what's even the question so that I can help you get the answer???
Explanation:
A cryosphere is just a hydrosphere but it's frozen in some way. glaciers, ice caps, and icebergs are cryospheres (frozen bodies of water).
Answer:
In an environmental temperature above optimum temperature will cause the enyzmes to denature (deform), because when they denature the subtrate will no longer fit into the enzyme
For the sahara desert highest has been 136.4 degrees and it can getvery low at night even way under 30 degrees