Sentence examples for a second reason was from inspiring English sources

A second reason was efficiency.

But a second reason was that "Porgy and Bess" itself changed.

A second reason was that people of the time were largely lactose intolerant.

A second reason was the attitude of the armed forces to the Americans, which mingled an intense desire to be useful to them with a not very well concealed rivalry.

A second reason was that the forecasts were produced in stable institutional settings.

A second reason was that the sample annotations were scattered over multiple databases.

A second reason is that AAs have about twice the prevalence of apolipoprotein E ε4 (ApoE4) than WAs.

A second reason is sustainability.

A second reason is globalization.

A second reason is the rat race.

A second reason is free speech.