Coasts and caves Lesson 55 of the geography course of Mova's primary school: 16 sentences, each with its syntax tree and pragmatics. The lessons are written for Mova, and their agreed trees are part of Mova corpus 0.4 (CC BY-SA 4.0). How Mova does on its tests: the lesson at school .
0 The coast is where land and sea fight, and in storms the waves hit cliffs with huge force, hurling pebbles and squeezing air into cracks. 1 Where hard and soft rock lie side by side, the soft rock wears back into bays and the hard rock sticks out as headlands. 3 Watch the sand on a beach where waves come in at a slant: it is moved along the shore, step by step, by longshore drift, and can build a long finger of sand called a spit. 4 Inland, caves are made in a different way: slightly acidic rain dissolves limestone. 5 Drip by drip the water leaves stone behind, growing stalactites that hang down from the roof and stalagmites that grow up from the floor. 6 Waves crash against coasts and wear them away, especially during storms. 7 Coasts with hard and soft rock form headlands and bays, since soft rock wears back faster. 8 Waves cut caves into headlands, the caves join into arches, and when arches fall, stacks are left. 9 Australia's Twelve Apostles are limestone stacks that are slowly collapsing as the sea erodes them. 10 Waves hitting a beach at an angle move sand along the coast, a process called longshore drift. 11 A spit is a long finger of sand or shingle stretching out from the coast into the sea. 12 The Holderness coast in Yorkshire is one of Europe's fastest-eroding coasts, losing about 1-2 metres a year. 13 Most big caves form in limestone, which slightly acidic rain slowly dissolves. 14 Stalactites hang from cave roofs and stalagmites grow up from the floor, built from dripping water. 15 Rising seas caused by global warming make coastal erosion and flooding worse. 16 The largest known cave passage is Son Doong in Vietnam, big enough to hold a city block with skyscrapers. ← previous Glaciers and ice agesnext → Soil↑ back to Geography This page in Markdown → https://md.mova.elamur.ai/free/en/corpora/school/geography/55-coasts-and-caves/