Do you think genetics play a role in the different skin colors we have on the top of our arms vs the bottom? Why or why not?

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Which technology do environmental scientists use to track the movements or polar bears and other vulnerable populations? a) geographic information system(gis) b)environmental dna(edna) surveillance c) global positioning system(gps) d) unmanned aerial system (uas)

Which activity occurs when a flowering plant reproduces?