D199 WGU Exam Questions and
Answers 100% Guaranteed Pass
in the last 10,000 years: - ✔✔humans began modifying the land surface for
growing food with advent of agricultural revolution
the agricultural revolution roughly - ✔✔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 - ✔✔INDUSTRIAL
REVOLUTION when climate pollution began to increase dramatically
the industrial revolution was powered by - ✔✔fossil fuels
what began after world war II? - ✔✔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 - ✔✔Homo sapiens' truly
massive global imprint on the planet
-The climate has already warmed by 1°C since 1900.
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, -If humans continue with business-as-usual consumption of fossil fuels, the
warming between 1900 and 2100 could exceed 4°C.
the greenhouse effect. - ✔✔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? - ✔✔-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 - ✔✔-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
black carbon aerosols (a major component of soot) - ✔✔-absorb solar radiation
entering the atmosphere and have a warming effect.
-warms the climate by absorbing solar energy rather than infrared energy from
the planet
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Answers 100% Guaranteed Pass
in the last 10,000 years: - ✔✔humans began modifying the land surface for
growing food with advent of agricultural revolution
the agricultural revolution roughly - ✔✔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 - ✔✔INDUSTRIAL
REVOLUTION when climate pollution began to increase dramatically
the industrial revolution was powered by - ✔✔fossil fuels
what began after world war II? - ✔✔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 - ✔✔Homo sapiens' truly
massive global imprint on the planet
-The climate has already warmed by 1°C since 1900.
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, -If humans continue with business-as-usual consumption of fossil fuels, the
warming between 1900 and 2100 could exceed 4°C.
the greenhouse effect. - ✔✔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? - ✔✔-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 - ✔✔-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
black carbon aerosols (a major component of soot) - ✔✔-absorb solar radiation
entering the atmosphere and have a warming effect.
-warms the climate by absorbing solar energy rather than infrared energy from
the planet
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
