I want to know the answer to the following question:
Air attacks headed by  Germany increased in 1915 in what area?
All the background I'm provided with is that "German air attacks on the British Isles increased in 1915 and the AA efforts were deemed somewhat ineffective, so a Royal Navy gunnery expert, Admiral Sir Percy Scott, was appointed to make improvements, particularly an integrated AA defence for London.". Is that enough to answer the question?
Answer: yes