They won the tournament. (use 'since' or 'as a consequence of' to complete the sentence saying that they were better prepared
Since they were better prepared, they won the tournament./ As a consequence of being better prepared, they won the tournament.
She won the competition [because of / because] her excellent strategy in the match.
She won the competition because of her excellent strategy in the match.
The company’s failure was [due to / because of] poor location.
The company’s failure was due to poor location.
The heavy snowfall was [because of/due to[ El Niño.
The heavy snowfall was due to El Niño.
The event was canceled [due to / because of] the snow.
The event was canceled because of the snow.
The crash was [because of/due to] the erratic nature of the other driver.
The crash was due to the erratic nature of the other driver.
I need an umbrella .... the rain.
I need an umbrella because of/due to the rain.
[Due to/because of/since] the effects of El Niño, the snowfall was heavy.
Due to the effects of El Niño, the snowfall was heavy.
[Because of / due to] the delay, meals will be provided for free to all passengers.
Both are grammatically correct.
The cancellation was [because of / due to] the rainstorm.
The cancellation was due to the rainstorm.
The crash occurred [because of/due to] the erratic nature of the other driver.
The crash occurred because of the erratic nature of the other driver.
Her headache was [because of/due to] the noise coming from upstairs.
Her headache was due to the noise coming from upstairs.
The company failed [due to / because of] its financial crisis.
The company failed because of its financial crisis.
The business’s failure was [due to / because of] poor location.
The business’s failure was due to poor location.
The business failed ... (complete it stating that the cause of its failure was its poor location)
...
The snowfall came [because of/due to] the effects of El Niño.
The snowfall came because of the effects of El Niño.