Question

huge hoarding and advertisement create pollution ​

Answer 1

Explanation:

Advertising hoardings are the large boards erected around a construction site, which can prominently feature printed graphics and designs. While these panels can be (and sadly often are) left blank, they’re hugely effective as the basis for an outdoor advertising campaign.

There can be a bit of confusion over the British vs American definitions of what advertising hoardings are. In the US, hoardings can refer to large roadside advertising panels – such as billboards – which can make things a little confusing. In the UK, hoardings mainly refer to the protective panels that protect the public from construction sites (with a few small exceptions, such as the barriers around sports pitches). These are a legal requirement, and so any construction site in a public place will have a set of these – making for plentiful advertising opportunities!