Решение:
- Tartan cloth is popular in Scotland. (Adjective)
- The shamrock is the national symbol of Ireland. (Adjective)
- The Welsh dragon is on the flag of Wales. (Noun)
- Buses are the symbol of London. (Noun)
- There are many cows in Scotland. (Noun)
- The Union Jack is the flag of the UK. (Noun phrase, treated as a single noun)
- The tartan scarf is from Scotland. (Noun)
- England, Scotland, Wales and Northern Ireland are parts of the UK. (Noun phrase, treated as a single noun)
Одно лишнее слово: double decker.