WGU D199 Exam Questions and Correct Answers

WGU D199 Exam Questions and Correct Answers in the last 10,000 years: - Answer-humans began modifying the land surface for growing food with advent of agricultural revolution the agricultural revolution roughly - Answer-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 - Answer-INDUSTRIAL REVOLUTION when climate pollution began to increase dramatically the industrial revolution was powered by - Answer-fossil fuels what began after world war II? - Answer-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 - Answer-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. - Answer-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