I think the answer is false.
In relation to the Andes mountain, the Atacama desert is located to the west. It actually lies between the pacific ocean and the Andes mountain. The Atacama desert is one of the driest place on earth. It is a rainless pleatue located in Southern America. The Atacama desert covers almost a 1000 kilometers. The desert mainly consists of salt lakes, rocks and sand. This is a place where rain occurred numerous years ago and so it is considered a totally rainless place. There is every probability that the Atacama desert is the oldest desert present in the earth.
~Hello there! ^_^
Your question: A plate boundary at which two plates slide past each other horizontally is a?
Your answer: A plate boundary at which two plates slide past each other horizontally is a San Andreas Fault.
Hope this helps~
Answer: The watersheds of creeks and rivers are separated from each other by land forms of higher elevation called ridge lines or mountain divides.
Explanation: drainage divide. Definition English: Water divide a k a Drainage divide, Because water runs downhill, topography defines the boundary of a watershed ridges or high points in a landscape form the line between one watershed and another.
Hope this helps :3