11 questions earth science 50 points
one of the areas that earth scientists study is
the oceans
machines
plant cells
farming methods

which of the following provides evidence that has earth scientists determine the age of the earth more precisely?
radioactive dating
earth's distance from the sun
tree rings
helium dating

in 1650, an individual calculated that the earth was about 6,000 years old. since then, what has happened to scientists' estimates of the earth's age?
scientists agree with the estimate from 1650.
scientists now think the earth is much older
scientist now are less sure about the earth's age.
scientists now think the earth is much younger.

what is the cryosphere?
all of the frozen water part of the earth system
all of the non-frozen water part of the earth system
the portion of the earth system that includes the earth's interior, rocks and minerals, landforms and processes that shape the earth's surface.
the rigid outer part of the earth consisting of the crust and upper mantle.

what is the geosphere?
all of the frozen water part of the earth system
all of the non-frozen water part of the earth system
the portion of the earth system that includes the earth's interior, rocks and minerals, landforms and processes that shape the earth's surface.
the rigid outer part of the earth consisting of the crust and upper mantle.

what is the hydrosphere?
all of the frozen water part of the earth system
all of the non-frozen water part of the earth system
the portion of the earth system that includes the earth's interior, rocks and minerals, landforms and processes that shape the earth's surface.
the rigid outer part of the earth consisting of the crust and upper mantle.

what is the lithosphere?
all of the frozen water part of the earth system
all of the non-frozen water part of the earth system
the portion of the earth system that includes the earth's interior, rocks and minerals, landforms and processes that shape the earth's surface.
the rigid outer part of the earth consisting of the crust and upper mantle.

according to the ideas of william smith, which rock layers are the same age?
layers of equal density
layers with different fossils
layers made of the same chemicals
layers with similar fossils

what is the metric system?
a system of measurement; based on multiples of 10
a system of measurement; based on multiples of 1
a system of measurement for length, weight, time, and capicity used in the united states
a system of measurement for length, weight, time, and capicity not used by scientists across the world

which of the following units is not a metric system unit?
grams
liters
pounds
meters

assuming the contour interval is 20 ft on footprint island, what elevation change would a hiker experience if they walked from point a to point b on footprint island?
20 ft
80 ft
100 ft
160 ft

the image shows a topographic map for three different wildlife preserves.

there are also six different profiles of hikes taken across the wildlife preserves. each profile describes the change in elevation a hiker would experience if he or she hiked n - s across the wildlife preserve or e - w across the wildlife preserve.

match each profile with the wildlife preserve hike it is describing.
hike profile c
hike profile f
hike profile d
hike profile b
hike profile a
hike profile e