Marketing is the study and management of exchange relationships. Marketing is used to create, keep and satisfy the customer. With the customer as the focus of its activities, it can be concluded that Marketing is one of the premier components of Business Management - the other being innovation.
By the way, if anyone here is in advertising or marketing...kill yourself...you're the ruiner of all things good...you are Satan's spawn, filling the world with bile and garbage...kill yourself.
To EU-funded Earth scientists it is evident that many parts of the Earth's crust have been extracted from the underlying mantle. However, the timing of new crust formation and recycling of old crust has proven to be an elusive issue.