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Country on the Baltic Sea.

Of three or more items weighs the least.

A wind of force 2 on the Beaufort Scale (7-12km/hr).

Visible light is electromagnetic radiation that can be perceived by most human eyes.

A distance between two points that is more than average or usual.

Country in northwestern Europe.

The number which appears most often in a set of numbers.

A material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well.

An optical instrument that magnifies the image of small objects so that they can be viewed.

A metric unit of length equal to one thousandth of a metre (0.001 metre).