the footwall
lakes form on the floor of a rift valley
The floor area of Mid Valley Megamall is 1.7 million square feet.
Chicken Nuggets
rift valley
A tributary valley that joins a main valley where the latter has been deepened, usually by glacial erosion, resulting in a steep drop from the floor of the tributary valley to the floor of the main valley. For the source and more detailed information concerning this subject, click on the related links section (Answers.com) indicated below this answer box.
lakes form on the floor of a rift valley
laying down sediment and plucking the valley floor.
Slowly, a thick layer of sediment built up the entire valley floor
The floor area of Mid Valley Megamall is 1.7 million square feet.
Valley is a noun. But it is used as an 'adjunct' or adjective to describe things in or about a valley: valley floor, valley streams, valley residents.
A convergent boundary forms when two tectonic plates collide.
Valley floor.
valley
floor
The floor of the valley of the Great Tetons is called Jackson Hole. It is situated in the state of Wyoming, and this valley is surrounded by very steep mountains.
Chicken Nuggets
lakes form on the floor of a rift valley