Guys help please

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine