Name the gases that catalytic converters remove from car exhaust

What are the 4 phases of matter in order of increasing engery content?

Define dew point. i am writing this part to be able to ask the question

Astudent is trying to create a table that compares hypotheses, theories, and laws. hypothesis theory law do scientific researchers formulate it? yes yes yes does it explain why things happen? yes yes no yes yes yes is it used to make predictions? no yes yes which of the following questions would most likely fill the blank in the table? is it an intelligent guess? is it newly formulated? is it based on observations? has it been proved?