4а 1 Complete the sentences. Use: threaten, face, damage, survive, preserve, worship.1 Visitors and traffic pollutionancient sites such as Stonehenge.2 In the past, people used tothe sun at Stonehenge.3 A lot of animalsextinctionnowadays.4 The effects of global warmingour national monuments.5 Conservationists are working hard toancient sites.6 We need to act now if our historical sitesare to ...​