But _______________ steps towards civilisation [...] began only around 10,000 years ago, with the first civilisations appearing 6,400 years ago.

Print _______________ carried with it the idea that books are important.

Express _______________ is given explicitly, either orally or in writing.

It consists of seven nuclear reactors, with a _______________ capacity of about 8,000 megawatts.

It’s provided a _______________ for countries to develop and implement evidence-based measures to reduce tobacco use and the harms associated with it.

_______________ practice with spears and bows made them deadly fighters.

They use their economic power (employment, tax revenues) to support _______________ lobbying that weakens government policy.

This makes the air expand to occupy a larger _______________.

The _______________ of these dots tells scientists how the atoms are arranged in the molecule.

While scientists don’t have the full answer yet, they are finding clues by studying people’s brains as they _______________ between sleeping and waking.