Answer:
to mack boats float
Explanation:
without it the boats will sink to the bottom
Answer:
It would be lower than because, if the boiling point of that element is 77 Kelvin degrees then if it isn’t at boiling point it would automatically be cooler than that. Even if it’s at its original state. The normal temperature of Liquid Nitrogen is really cold -320.8 degrees.
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Answer: about 100 km[kilometers] thick
Explanation:
I believe the answer is b) slowly heating the surface
