Common app help

I want to apply for reach shools unc ea and ga tech ea. How should i do my activites section? Should i list 10? My grades are high, act is 30 super so 25-50th percentile for both schools, english teacher said my essays were very good. Will this section amke a huge difference? 5 of my activities i have done all 4 years while other 5 its 1-2 years.( some like nhs and beta could only be joined junior year) i am just a member in all clubs. Should i list them all? And also, i have played basketall since 6, should i put that or only high school years. Thanks

I listed mine in order of importance.