Explain why water boils at 100°c at sea level on earth but the same water boils at 70°c on mount everest

Harvey mixes two liquids. which observation of the new mixture most likely indicates a precipitate is forming?

__can be defined as which velocity changes

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.