Summarize the history of radioactive by choosing the scientist ( s ) involved with each discovery

Me to solve all the questions on the sheet attached

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger