Humans have unbalanced the carbon cycle, by burning ancient (fossil) carbon and causing deforestation. This has lead to
Group of answer choices
an unbalancing of ecological succession
an unbalancing of primary productivity
an unbalancing of the climate
Ans - The main cause of climate change is the anthropogenic
increase in greenhouse gas concentrations in the earth's
atmosphere.
Humans have unbalanced the carbon cycle, by burning ancient (fossil) carbon and causing deforestation. This has...
The complete picture of the carbon cycle Fossil Fuel Burning Vegetation & Land Ocean 444 450 332| 338 Carbon cycle for the 1990s. Numbers are in billion tonnes of CO2 (IPCC AR4), This IPCC graphic shows CO2 flow between reservoirs in billions of tons. Using the data presented, explain how human activities can be cited as a major factor in climate change, if they are such a small percentage of overall CO2.
Humans can have a dramatic effect on the carbon cycle. Please explain how the impact of clearing trees and burning the debris can have a far greater effect on the carbon cycle than just the carbon released from burning.
Describe how humans have affected the numerous pathways and reservoirs in the carbon cycle that have contributed to climate change. Find three examples where positive feedback in the environment is likely contributing more carbon dioxide to the atmosphere that is not a result of human activities. (6 marks)
QUESTION 9 The largest impact that humans have on the Nitrogen cycle is due to: combustion of fossil fuels deforestation domestication of animals production and application of synthetic fertilizers 3 points QUESTION 10 The C:N ratio of plant litter is important because litter with a high C:N ratio does not contain enough nitrogen for decomposers, resulting in immobilization low C:N ratio cannot be utilized by most organisms without extra carbon available low C:N ratio does not contain enough nitrogen...
Q4.23. Some researchers have hypothesized that the feedback loop pictured below influences the carbon dynamics of Arctic ecosystems as follows: Elevated atmospheric CO2 levels cause the climate to warm, thawing permafrost. Nitrogen mineralization is then stimulated as thawed permafrost decomposes. The resulting increase in soil ammonium then stimulates primary production, which pulls CO2 from the air. What kind of feedback loop is described? Temperature-Mineralization Feedback Co, Level us Primary Production Temperature N- Mineralization A positive feedback loop that amplifies the...
Background: Ancient lycophytes were the dominant plants on Earth during the Carboniferous Period, which is named for the coal that formed from those ancient plants that lived 300 million years ago. As humans use fossil fuels such as coal and gas, we release carbon in the form of carbon dioxide (CO2) into the air. Because CO2 traps heat near the surface of the earth, it is known as a greenhouse gas and contributes to climate change. However, carbon is also...
I have an Assignment of Marketing Research on Climate Change. Where i have to take an interview of an industry professional, which is done. I have all answer what he said, now i just need to analysis all answer into sub category which are as follow: - 1. Level of Concern of Professionals 2. Impacts on Industry 3. Awareness of Millennials' Knowledge 4. Attitudes Among Millennials If you think any other category could be included please add it. i have...
Question 71 pts What is an isotope? Group of answer choices An atom that has more or fewer neutrons than it typically does An atom that has double the protons of a stable atom A nucleus of an atom that has split during the decay process An atom that has more or fewer electrons than it typically does Flag this Question Question 82 pts When the radiometric clock starts ticking in zircon minerals, there is 100% of the unstable radiometric...
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Question 23 (1 point) Which observation is NOT explained by the intermediate disturbance hypothesis In the interior of an old forest a low number of K-type species dominate the community Species evenness is larger when disturbances are extremely frequent Species richness increases immediately after a disturbance such as a fire, but may decrease later In beach dune environments, a low number of r-type species dominate the community Question 24 (1 point) Some birds follow moving swarms of army...
PLEASE HELPING ON EXERCISE 4! THANK YOU!
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Exercise 4: Annual Precipitation Repeat the procedures of Exercises 1, 2, and 3 using the anmual precipitation totals from the Downtown Los Angeles webpage. These data can be found under the section headed "Period of Record." From there, they are located under the "Precipitation" category and Monthlhy Precipitation Listings." Use the "Monthly Totals" rather than the "Daily Extremes. (Remember, though monthly data are provided you will be working with the annual...