Broadleaf forest. Broadleaf forests are the dominant habitat of the UK and most of temperate northern Europe. There's little left of Britain's ancient wildwood, but isolated pockets of oak, beech and mixed deciduous and evergreen woodlands are scattered across the continent, and dictate its biodiversity.
Engine pinging also refered to as pinking, detonation or knocking. Pinging can be anything from a loud knocking noise to a soft tinkling sound that is emitted from the engine. If an engine has a tendency to ping, it usually becomes first audible when operated in the lower rpm range and during acceleration.
What does it mean to ping something? A ping is a term used to refer to a tool that checks to see if a website is down or not. In the context of Web search, pinging a Web site basically means that you're endeavoring to determine whether a specific Web site is having issues; it could also help narrow down connectivity problems when you're attempting to upload or download something.