Cases of word usage

1) the mixture of gases that surrounds the Earth and which we breathe (air)

2) a mixture of metals, especially a metal of low value mixed with a metal of higher value (alloy)

3) the mixture of gases surrounding the Earth (atmosphere)

4) a mixture (of sorts of one thing, different foods etc) (blend)

5) a metal made of a mixture of copper and tin (bronze)

6) a sweet mixture of flour, eggs, butter etc baked in an oven (cake)

7) a mixture of milk and flavoured corn flour eaten with fruit, pastry etc (custard)

8) a mixture of flour, water etc, used to make bread, pastry etc (dough)

9) a mixture of small stones with coarse sand, used for roads and paths (gravel)

10) a mixture of sugar, white of egg etc used for covering cake(s); the formation of ice, e.g. on the wings of an aircraft (icing)