Light Pollution. Earth's Hour

Wasting energy ..... affects our natural world.

A ..... dog set off the security lights.

My cat likes to ..... through the gargen.

Some wildlife species are ..... because of light pollution.

Can you ..... the bathroom light? There's noone in there.

Why is that light .... on and off?

Look at those insects ..... around the light?

It's not easy to .... stars in the sky on a cloudy night.

Too much light ..... wildlife.

They called the ..... when the fire broke out in the builing.

Suddenly the lights went out and we were left in ...

There is so much ..... from all the lights that it's impossible to see the stars at night.

You must leave your car at a .... as there is no parking allowed in the street.

The ..... flash on and off whenever anything passes in front of them.

He works on the 10th floor of the ....

They walked along the .... and watched the waves.

It's important to have aregular .... with 8 hours' sleep each night.

If ..... is not treated it can cause a heart attack.

On cloudless nights, we love to look at the ....

Her lack .... sleep makes her very tense.

We marvelled ... the beauty of the night sky.

I can see storm clouds ... horizon.

I can see lots of stars ... the sky.

Overeating can lead ... health problems.