please help this is very important i will give you brain thing if its correct and no links pwease <3

Sound waves can travel through almost everything so it would be the last one; air(gas), liquid, and solid! Hope this helps!! :)

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long  

answer; calendar;