The Amargosa Valley in eastern California desert often experiences a cold evening wind that blows downvalley. Which of the following might explain this phenomenon?
A) Moist Pacific air rising over the Sierra Nevada Mountains produces mountain precipitation, and as this air spills off the eastern escarpment, it forms the valley wind.
B) Daytime heating causes a local low pressure that causes air to rush in by evening.
C) Night time cooling upvalley produces a cold, unstable air mass that is funneled down the valley to produce a valley wind.
D) It is a nighttime land breeze and there should be an accompanying daytime seabreeze up valley.
C
You might also like to view...
What is Gross National Income (GNI) and what are its shortcomings as an indicator of economic development and social well-being?
What will be an ideal response?
The free fall of rock through air is called _______________
Fill in the blank(s) with correct word
What type of feedback maintains stability in a system; i.e., what type of feedback keeps a system functioning properly by discouraging change?
A) tipping point B) neutral C) threshold D) positive E) negative
There is little evidence that human activity has an impact on soils
Indicate whether the statement is true or false