Global Design Competition

21   Students entering the design competition have to

A   produce an energy-efficient design.

B   adapt an existing energy-saving appliance.

C   develop a new use for current technology.

22   John chose a dishwasher because he wanted to make dishwashers

A   more appealing.

B   more common.

C   more economical.

23   The stone in John’s ‘Rockpool’ design is used

A   for decoration.

B   to switch it on.

C   to stop water escaping.

24   In the holding chamber, the carbon dioxide

A   changes back to a gas.

B   dries the dishes.

C   is allowed to cool.

25   At the end of the cleaning process, the carbon dioxide

A   is released into the air.

B   is disposed of with the waste.

C   is collected ready to be re-used.

Write ONE WORD ONLY for each answer.

Write ONE WORD ONLY for each answer.