WGU D199 Summary and
Test(Introduction to Physical and Human
Geography)Questions And Answers||
GRADED A+|| LATEST UPDATE 2026
in the last 10,000 years: -CORRECTANSWER humans began modifying the land
surface for growing food with advent of agricultural revolution
the agricultural revolution roughly -CORRECTANSWER 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 -CORRECTANSWER INDUSTRIAL
REVOLUTION when climate pollution began to increase dramatically
the industrial revolution was powered by -CORRECTANSWER fossil fuels
what began after world war II? -CORRECTANSWER 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 -CORRECTANSWER 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. -CORRECTANSWER 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? -CORRECTANSWER -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 -CORRECTANSWER -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
Test(Introduction to Physical and Human
Geography)Questions And Answers||
GRADED A+|| LATEST UPDATE 2026
in the last 10,000 years: -CORRECTANSWER humans began modifying the land
surface for growing food with advent of agricultural revolution
the agricultural revolution roughly -CORRECTANSWER 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 -CORRECTANSWER INDUSTRIAL
REVOLUTION when climate pollution began to increase dramatically
the industrial revolution was powered by -CORRECTANSWER fossil fuels
what began after world war II? -CORRECTANSWER 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 -CORRECTANSWER 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. -CORRECTANSWER 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? -CORRECTANSWER -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 -CORRECTANSWER -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
