What goes up but never ever comes down?

answer:

dank memes

Explanation: let me elaborate... the memes will always stay on the internet. and even if they die. they wont be deleted... therefore they go up on the interent. but never come down. or are erased fully in memory

answer:

age

Explanation:

Age works because we are always growing older, but we are not growing younger

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology