Muslim scholars were responsible for a. inventing the sundial. b. refining the arabic numeral system. c. precisely calculating the length of the year. d. refining the concept of infinity.

this defines the ability for a flex item to grow if necessary. it accepts a unitless value that serves as a proportion. it dictates what amount of the available space inside the flex container the item should take up.

give brainlest

democracy

explanation:

civil disobedience, refusal to obey the demands or commands of a government or occupying power, without resorting to violence or active measures of opposition

nuclear weapons are hoaxes. many people believe they are real, though.