What if someone refers to a crystal's " habit" what are they referring to?

need answer asap

How would doubling the made of an object change the objects potential energy

Waves are used in many practical applications to support work, entertainment, and health. one example is the use of ultrasound imaging to safely track the development of a growing fetus. what is a specific example of a practical application of waves in medicine, entertainment, safety, or other fields? provide a brief explanation of how the properties of waves are useful to that application.

The ph is the a.independent variable b.the dependent variable c.control group