Question

(45) Most of the global warming is
due to the disturbance of which of
these cycles? *
a Nitrogen cycle
b Carbon cycle
c Water cycle
d Phosphorus cycle​

Answer 1

Answer:

Global warming is the ongoing rise of the average temperature of the Earth's climate system. It is a major aspect of climate change which, in addition to rising global surface temperatures, also includes its effects, such as changes in precipitation. While there have been prehistoric periods of global warming, observed changes since the mid-20th century have been unprecedented in rate and scale.

Observed temperature from NASA.vs the 1850–1900 average as a pre-industrial baseline. The primary driver for increased global temperatures in the industrial era is human activity, with natural forces adding variability.

The Intergovernmental Panel on Climate Change (IPCC) concluded that "human influence on climate has been the dominant cause of observed warming since the mid-20th century". These findings have been recognized by the national science academies of major nations and are not disputed by any scientific body of national or international standing.The largest human influence has been the emission of greenhouse gases, with over 90% of the impact from carbon dioxide and methane.Fossil fuel burning is the principal source of these gases, with agricultural emissions and deforestation also playing significant roles. Climate sensitivity to these gases is affected by feedbacks, such as loss of snow cover, increased water vapour, and melting permafrost.

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Answer 2

CARBON CYCLE

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