Use the information and your knowledge of climate, global systems, and ecosystem interactions to help you
answer the following five questions.
Something very interesting happened to the climate of
the West Coast of the United States after the last ice
age, which occurred about 10,000 years ago. Before
the ice age, the Southwest United States had an
abundance of plant life and was home to large fauna
such as saber-tooth cats and mammoths. The Pacific
Northwest was mostly grasslands.
After the ice age, the jet stream that was responsible
for pushing wind and moisture to the Southwest
shifted north as the glaciers retreated, and showered
the Pacific Northwest with precipitation. This led to the
dense forests that now cover that region, and a drying-
out of the Southwest.
1. How is climate defined? Do the events described
constitute a change in climate for the West Coast
of the United States?
2. View the current climate chart for Yuma, Arizona,
which is located in the Southwestern United
States. What changes would you make to model
the climate before the ice age? Explain why you
would make these changes.
Yuma, Arizona
400
300
200
Avg. Temperature (°C)
40
30
20
10
0
-10
-20
-30
Avg. Precipitation (mm)
100
0
JFMAM J J A SOND
Month

answer; ///the correct answer to the above question is (

blah

explanation:

bc blah

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.