Question

__________ is a gradual increase in the average temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the ________.

• A. Ozone depletion, Industrial Revolution
• B. Global warming, Industrial revolution
• C. Global warming, Green revolution
• D. Ozone depletion, Green revolution

Answer 1

The correct option is B Global warming, Industrial revolution

The Industrial Revolution spanned the 18th and early 19th Century. Over this period, global CO2 emissions were a fraction of current levels. During the 18th Century, global CO2 emissions were around 3 to 7 million tonnes per year. During the early 19th Century, CO2 emissions steadily rose reaching 54 million tonnes per year by 1850. Currently we are emitting over 8000 million tonnes per year.

Global warming is the consequence of the over proportional activities of the humans on the earth such that what the earth stored and built in very long time is to be consumed in a very short time. This disturbs much the dynamic balance on the earth leading to huge production of substances and gases such as the carbon dioxide that can not be reprocessed again by the earth and remains in the environment.

The recent industrial civilization is based on machines driven by energy taken from fossil fuels. It has good achievements but the cost is very serious. The cost is the environmental pollution especially CO2 as it leads to global warming which can has unseen serious effects on our climate.