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This week’s new questions

As average sea levels rise, will contour lines and spot heights on maps need to be recalculated – and if so, when? And how old would a human child have to be to be able to survive in the wild?

17 April 2024

Close up of an augmented reality (AR) sand table, an advanced technology to create a learning tool for students.; Shutterstock ID 1857112591; purchase_order: -; job: -; client: -; other: -

Ipek Morel/Shutterstock

As average sea levels rise, will contour lines and spot heights on maps need to be recalculated? If so, when?

Mark Bean,

Southampton, UK

Back view of 9 year old girl hiking, walking alone in the forest by the river with a backpack in early spring. Beautiful idyllic nature.; Shutterstock ID 2302035971; purchase_order: -; job: -; client: -; other: -

Shutterstock/FotoHelin

At what age would a human child be capable of surviving in the wild?

Derek Johnson,

Moreton-in-Marsh, Gloucestershire, UK

To answer this question – or ask a new one – email lastword@newscientist.com.

Questions should be scientific enquiries about everyday phenomena, and both questions and answers should be concise. We reserve the right to edit items for clarity and style. Please include a postal address, daytime telephone number and email address.

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