How do you spell up sloping?

"Up sloping" can be spelled two ways, depending on the context:

* Upsloping: This is the more common spelling, used as an adjective to describe something that slopes upwards. For example, "The road has an upsloping curve."

* Up sloping: This is a less common spelling, used as a verb phrase, meaning to slope upwards. For example, "The land up slopes to the mountain."

Both spellings are grammatically correct, but the first one is generally preferred.