Select all the correct answers.
which two statements are true?
a moving magnetic field creates an electric field.
a constant magnetic field creates an electric field.
a constant electric field creates a magnetic field,
a moving electric field creates a magnetic field.

Which would not reduce the amount of green house gasses in the air

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?

Are formed where bumps from two surfaces come into contact ?