Complex sentence: This Bill came about as a result of the concern over child pornography and the sexual exploitation of children that arose in the United States of America in 1977 and the uptake of this cause in the UK by Mary Whitehouse and the press.
Split into simpler sentences: This Bill came about as a result of the concern over child pornography and the sexual exploitation of children that arose in the United States of America in 1977. This cause was taken up in the UK by Mary Whitehouse and the press.