1.   All these gases are potent greenhouse gases.

2.   And where was her gas stove and the red rose bush from the yard?

3.   Because the gas is highly explosive, it needs to be kept in high-pressure containers.

4.   Evidence showed that almost twice as much gas had been loaded into the underground cavern, resulting in the blast.

5.   Gas is a desirable but not essential service.

6.   The gas can be fatal if inhaled in large amounts.

7.   The gas is invisible but highly dangerous.

8.   The gas was to reduce iron oxide to make iron which could later be fed to a steel works.

9.   The gases are stored in cylinders.

10.   Gas is a very efficient fuel.