What is a control in a scientific experiment

Hey there!

In a scientific experiment, there are three types of variables: dependent, independent, and control.

Independent variables are the variables that are changed and doesn't depend on another.

Dependent variables are the variables that are depending on the independent variable. When the independent variable changes, it affects the dependent variable.

Control variables are the variables that are kept the same throughout the entire experiment. These don't change at all.

Hope this helps!

it was spontaneous.

"ain't i a woman? " is the name given to a speech, delivered extemporaneously, by sojourner truth, (1797–1883), born into slavery in new york state.sojourner truth' delivered her famous speech "ain't i a woman? " (which did not have a title at that moment) was given without any previous preparation. her dissertation took place at the women's convention in akron, ohio, in 1851.

d) nh3 give me brainliest