When sound waves are reflected back to the source, the reflected sound is called

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

How do the kidneys affect homeostasis

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader