Answer:
There were a lot of reasons yet the most important reasons were that the obstacle between Britain and Europe was a large space of water. British forces also made it impossible to land on the beaches by setting them on fire regularly. Another reason the Germans failed to take Britain was the bravery of the pilots of the Royal Air-Force which fought off an air strike of more then 50 Messerschmit 264 and JU-390, JU-87 Stuka bombers.