Pitch refers to how many vibrations per second are perceived by the human ear ⊝ how many cycles per second are in a transverse wave ⊝ the constructive interference of electromagnetic waves. ⊝ the destructive interference in transverse waves. ⊝ CLEAR ALL

the second one and the forth one are in the purple because they are opinions and the rest are in the yellow

explanation:

it is very well related to a lot of things but with my limited knowledge i can confidently say that the answer is space.

the closer the planet is to the sun, the larger the gravity

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation