improved research improved resolution improved resource improved response improved results improved retention improved risk improved road improved safety improved sales improved sanitation improved sanitation facilities improved school improved search improved security improved seeds improved service improved service delivery improved services improved significantly improved skills improved skin improved sleep improved slightly improved so improved so much improved social improved soil improved somewhat improved sound improved speed improved stability improved standards improved steadily improved storage improved strength improved structure improved substantially improved support improved surface improved surgical improved survival improved symptoms improved system improved technical improved techniques improved technology improved thanks improved the efficiency improved the lives improved the quality improved the situation improved therapeutic improved thermal improved too improved tools improved traction improved traffic improved training improved transparency improved transport improved transportation improved treatment improved tremendously improved understanding improved urban improved usability improved use improved user improved user experience improved user interface improved utilization improved varieties improved vehicle improved version improved versions improved very improved visibility improved vision improved visual improved water improved water quality improved water source improved water supply improved wear improved well-being improved with age improved with new improved work improved working improved working conditions improved yield improved yields improved you improvement improvement act improvement actions improvement activities improvement also