Cam 16 Test 3

Passage 1: Roman shipbuilding and navigation

Passage 2: Climate change reveals ancient artefacts in Norway’s glaciers

Passage 3: Plant ‘thermometer’ triggers springtime growth by measuring night-time heat

A photoreceptor molecule in plant cells has been found to have a second job as a thermometer after dark – allowing plants to read seasonal temperature changes. Scientists say the discovery could help breed crops that are more resilient to the temperatures expected to result from climate change