21.   Climate change could have disastrous effects on Earth.

22.   Competition and ruthless downsizing have had positive effects.

23.   Conversely, mediators produced by immune cells can influence nerve cells - histamine and prostaglandins both have this effect.

24.   Damage to the corresponding part of the right hemisphere had no effect on speech.

25.   Eating Junk food will eventually have an effect on your health.

26.   Environmentalists claim that the development will have undesirable effects on animal habitats in the area.

27.   Flanging, by nature, has the effect of thinning down a signal, especially if used on an extreme setting.

28.   For example, treasury bill finance has the effect of creating extremely liquid assets which are very close substitutes for money.

29.   Frequent prohibitions by the government against the bearing of arms had no effect.