A scientist adds different amounts of salt to 5 bottles of water. She then measures how long it takes for the water to boil. What is the responding
variable in this experiment?
O A. The time it takes for the water to boil
O B. The amount of salt added to the water
C. The kind of bottles used
D. The brand of salt used

A. The time it takes for the water to boil

It is because salt was added into the water. So the responding variable is the time taken to boil the water.

hope this help u. good luck

there is no correct list among the choices you've provided.

the list might look something like this:

-- baby human

-- piccolo

-- flute

-- soprano singer

-- trumpet

-- tenor singer

-- trombone

-- baritone singer

-- baritone horn

-- bass singer

-- tuba

since i had to make up the list myself, i made it easy on myself, and i didn't try to shuffle the string instruments and woodwinds into it too.

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge