Пре­об­ра­зуй­те, если это не­об­хо­ди­мо, слово POPULATE так, чтобы оно грам­ма­ти­че­ски и лек­си­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Going for a walk is the most popular leisure activity in Britain. Despite its high __________________ density and widespread urbanization, the UK has many unspoilt rural and coastal areas.