1.9) When three or more cirques erode into a mountain summit, they form a featur

Question

1.9) When three or more cirques erode into a mountain summit, they form a feature known as a(n):

More on the peaks of Yosemite in general is available via the following link:

http://www.summitpost.org/yosemite-s-highest-peaks/742800

Select one:

a. Esker

c. Horn

d. Cirque

1.15)   Which of the following is NOT a greenhouse gas?

Select one:

a. Water

c. Nitrous Oxide

d. Methane

e. Carbon Dioxide

1.17)   Coal and petroleum products (fossil fuels) are essentially ___________ and the energy from _______ that has been stored underground for millions of years.

Select one:

b. oxygen, the ocean

c. ozone, nuclear reactions

d. ozone, the Sun

e. carbon, the Sun

1.23) If all the glaciers and ice caps melt _____________.

http://science.howstuffworks.com/environmental/earth/geophysics/question473.htm

http://web.gccaz.edu/~lnewman/gph111/topic_units/glacial/glacial2.html

Select one:

a. there will be no dry land left to inhabit

b. the sea-level will rise about 250ft

d. the sea-level will rise about 1300ft

e. the sea-level will rise about 15ft

1.28) What are some threats to California’s fresh water supply?

https://thinkprogress.org/10-years-after-katrina-will-californias-capital-be-the-next-new-orleans-83efd3b9294

http://www.spur.org/publications/urbanist-article/2013-03-07/future-water

Select one:

a. an aging water surface storage, conveyance and levee system in earthquake territory

b. hurricanes

c. climate change affecting the timing and magnitude of the supply

e. answers A and C

Explanation / Answer

ANSWER:

1.9) c. Horn

When three or more cirques erode into a mountain summit, they form a feature known as horn

1.15) a. Water

The primarygreenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide

1.17) e. carbon, the Sun

Coal and petroleum products (fossil fuels) are essentially carbon and the energy from the sun that has been stored underground for millions of years.

1.23) e. the sea-level will rise about 15ft

If all the glaciers and ice caps melt the sea-level will rise about 15ft.Glaciers around the world are melting. This can cause a lot of problems around the world. If all glaciers melt this can cause the height of water to go up by 15 feet.

1.28) e. answers A and C

lot of water flowing through here, relying on a levee system that is quickly aging.Although the exact timing and magnitude of future climate change impacts are uncertain,Climate Change Hits Home. As the climate changes, the Sierra snowpack that provides natural water storage for freshwater supply

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