[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-C2-1632":3},{"preview":4,"open":14,"missing":37},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":13,"instructions":14,"excerpt":15,"prompts":16,"lock":19,"access":20,"updated":21,"previous_id":22,"next_id":23,"previous":24,"next":28,"first":32},1632,57,70,"C2","reading","multiple_matching","reading_multiple_matching","Subterranean Marvels","subterranean-marvels",null,"The Lascaux cave complex in the Dordogne region of southwestern France, inadvertently discovered in 1940 by four adolescents whose dog had tumbled into a concealed shaft, harbours what is widely regarded as the most magnificent corpus of Upper Palaeolithic parietal art yet documented. The approximately six hundred…",[17,18],"Which cave was formed through a fundamentally different chemical mechanism than the standard process by which most limestone caves are created?","Which cave had to be permanently closed to visitors because the biological byproducts of human presence were actively destroying its principal treasures?","login","pro","2026-10-02T14:14:49",1631,1633,{"id":22,"number":25,"title":26,"slug":27},56,"Living Fossils","living-fossils",{"id":23,"number":29,"title":30,"slug":31},58,"Molten Earth","molten-earth",{"id":33,"number":34,"title":35,"slug":36},1576,1,"The Art of Saying","the-art-of-saying",false]