What is volume? what instrument is used to measure liquid volume? what formula is used to calculate the volume of a solid object.

Ineed to find the answer of this question because i dont understand it

What must occur for air masses to form fronts

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.