Sentence examples for this is controversial because from inspiring English sources

Naturally, this is controversial, because of. . .

This is controversial, because comparing outcomes is notoriously complicated.

This is controversial because it goes right to the heart of the social-networking business model.

This is controversial because it is very difficult to detect these new species coming into existence accurately without the fossil data; it is more commonly determined from assumptions made from the study of species alive today using molecular evidence".

This is controversial because for 1,000 years we have been pushing the sea back behind earth banks and more recently concrete walls, but it is clear that in some places this battle is now being lost.

This is controversial because we supply electricity to North America and yet we aren't getting any!

This was controversial because parrots have evolved unique muscles not seen in other birds, or reptiles.

This was controversial because the hospitals argued that their agreement would result in better care, a difficult thing to gauge.

This was controversial because some countries argued that Serbia should not get a SAA until it co-operated fully with the war-crimes tribunal.The bribe worked: Mr Tadic's party won.

This was controversial, because Clyde Wiegand and Thomas Ypsilantis were co-authors of the same paper, but did not share the prize.

This was controversial because, under Catholic canon law, the consecration of a bishop requires the permission of the Pope.