1|Page
D199 WGU Questions and Correct
Answers/ Latest Update / Already
Graded
in the last 10,000 years:
Ans: humans began modifying the land surface for growing food with
advent of agricultural revolution
the agricultural revolution roughly
Ans: coincides with a warm interglacial period that began about 11,700
years ago which is called the HOLOCENE era (warm stable climate)
the last 270 years of the holocene ushered into the
Ans: INDUSTRIAL REVOLUTION when climate pollution began to increase
dramatically
the industrial revolution was powered by
,2|Page
Ans: fossil fuels
what began after world war II?
Ans: the great acceleration (1950-present)
-caused depletion in the ozone layer
-After 1950, the biodiversity of species started decreasing and the
extinction of species accelerated
The Great Acceleration marks the beginning of
Ans: Homo sapiens' truly massive global imprint on the planet
-The climate has already warmed by 1°C since 1900.
-If humans continue with business-as-usual consumption of fossil fuels, the
warming between 1900 and 2100 could exceed 4°C.
the greenhouse effect.
, 3|Page
Ans: It is this trapping of heat energy that otherwise would have escaped
to space through the atmosphere
-allows solar radiation to enter
-the blanket effect
is the greenhouse effect real?
Ans: -Satellites routinely measure the incoming solar energy and the
outgoing heat energy from the planet
-Independently, the heat energy emitted by the surface has been
estimated using observed surface temperatures on land and sea.
aerosols
Ans: -Visible smoke and smog are made up of tiny particles
-carbon dioxide and other greenhouse gases cannot be seen by the
human eye
-Most of these aerosols reflect sunlight and have a cooling effect
D199 WGU Questions and Correct
Answers/ Latest Update / Already
Graded
in the last 10,000 years:
Ans: humans began modifying the land surface for growing food with
advent of agricultural revolution
the agricultural revolution roughly
Ans: coincides with a warm interglacial period that began about 11,700
years ago which is called the HOLOCENE era (warm stable climate)
the last 270 years of the holocene ushered into the
Ans: INDUSTRIAL REVOLUTION when climate pollution began to increase
dramatically
the industrial revolution was powered by
,2|Page
Ans: fossil fuels
what began after world war II?
Ans: the great acceleration (1950-present)
-caused depletion in the ozone layer
-After 1950, the biodiversity of species started decreasing and the
extinction of species accelerated
The Great Acceleration marks the beginning of
Ans: Homo sapiens' truly massive global imprint on the planet
-The climate has already warmed by 1°C since 1900.
-If humans continue with business-as-usual consumption of fossil fuels, the
warming between 1900 and 2100 could exceed 4°C.
the greenhouse effect.
, 3|Page
Ans: It is this trapping of heat energy that otherwise would have escaped
to space through the atmosphere
-allows solar radiation to enter
-the blanket effect
is the greenhouse effect real?
Ans: -Satellites routinely measure the incoming solar energy and the
outgoing heat energy from the planet
-Independently, the heat energy emitted by the surface has been
estimated using observed surface temperatures on land and sea.
aerosols
Ans: -Visible smoke and smog are made up of tiny particles
-carbon dioxide and other greenhouse gases cannot be seen by the
human eye
-Most of these aerosols reflect sunlight and have a cooling effect
