21.  The price of a job increases with its potential returns.

22.  The rate of heart contractions increases in an attempt to preserve blood flow to the vital organs.

23.  The whispering against Bradman increased during the second world war.

24.  Their impact energy per gram increases with the square of their relative velocity.

25.  Visitor numbers increase in the summer.

26.  Weight increases in direct proportion to Mass.

27.  The risk of cancer increases with the number of cigarettes you smoke.

28.  The chances of an error occurring in a computer program increase with the size of the program.

29.  The house increased in value.

30.  Political pressure on Prime Minister Kiichi Miyazawa increased in February, with fresh allegations that senior government figures had been involved in several cases of corruption.