GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which definition best describes global warming?
A
a long-term change in the Earth’s climate
B
a long-term increase in the Earth’s average temperature
C
a long-term change in the climate of a region or a city
D
solar heat that is radiated out into space
Explanation: 

Detailed explanation-1: -What Is Global Warming? Global warming is the long-term heating of Earth’s surface observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere.

Detailed explanation-2: -Global warming is the long-term warming of the planet’s overall temperature. Though this warming trend has been going on for a long time, its pace has significantly increased in the last hundred years due to the burning of fossil fuels.

Detailed explanation-3: -All of these human activities add greenhouse gases to the atmosphere. As the level of these gases rises, so does the temperature of Earth. The rise in Earth’s average temperature contributed to by human activity is known as global warming.

Detailed explanation-4: -Global warming is the phenomenon of gradual increase in the average temperature of earth . It is caused by the release of greenhouse gases like carbon dioxide, methane, CFCs etc. into the atmosphere.

There is 1 question to complete.