The medicine took effect.
CO₂ has a lot to do with the so-called greenhouse effect.
The Doppler effect is also observed with light and with radiant energy in general.
This sort of structure is called a double negative, but in effect it shows affirmation.
A scientist had to know how to ask the correct question and to state it so clearly that the answer would be, in effect, a definite yes or no, not "maybe".
Penis enlargement supplements, as sold on sites and in magazines, have essentially no effect.
They said something to the effect of ‘I’m going in the same direction so, I’ll call a taxi and then why don’t you ride with me?’
In music or speaking, a pause is frequently used for dramatic effect.
In order to live happily and healthily with parakeets or parrots, you should understand the science of animal behavior for domesticated birds, and consider the emotional effect of eventually losing them.
Everyone loves to hear praise, but over-praise has the opposite effect of sounding insincere.
Carpets have the effect of a dust pocket, with merit of sucking up dust and stopping it flying around, but you can say that effect backfires.
The answer lies in the effect of stress on two paricular parts of the brain
David’s parents were doctors and they had been studying the effects of the operation on the brain for years.
I wonder what effect technical advances such as the Internet, mobile phones and digitalization technology have on the people's awareness, actions and interest in politics.
What? Pharamp asked. "Nothing," Sysko lied, "we were talking about the effect of Confucianism on modern Chinese socialism."