Which turns metamorphic and sedimentary rocks into igneous rock? a. pressure and heat b. melting and cooling c. compaction and cementation d. weathering and erosion

What is the overall order of reaction for rate = k[no]2[o2]

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

If 22.5 of nitrogen at 748 mm hg are compressed to 725 mm hg at constant temperature. what is the new volume?