Explanation: oil and natural gas resources were discovered under the North Sea in 1959 have become major products of the United Kingdom. Phillips Petroleum first discovered oil and gas beneath the seafloor and ever since the economic importance of the North Sea has increased by a great extent. Because of this important discovery, the North Sea has a major influence on European history.
The North Sea has very important natural resources such as oil and natural gas. Oil is a mixture of organic compounds, mainly hydrocarbons insoluble in water, it is also known as crude oil or simply crude and gas natural which is an important source of fossil energy released by its combustion.
The answer is the second one. Deforestation of rain and forests and other parts of the world volcanic eruptions and widespread forest fires. This activity has contributed greatest amount of carbon dioxide into the atmosphere over the past 100 years.
