Draw the structure formula of another isomer of but 1 ene

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

What is the independent variable in this investigation? mass volume sample number substance density