Question

Capturing gas emitted from landfills results in a(n)______of CO2 production .

a) increase
b) decrease
c) balance
d) mis-balance

Answer 1

Capturing gas from landfills leads to a decrease in CO2 production by replacing electricity produced from fossil fuels. Other strategies for reducing CO2 include decreasing livestock agriculture and planting suitable plants, while oxygen is not a contributor to global warming.

Step-by-step explanation:

Capturing gas emitted from landfills results in a decrease of CO2 production. When landfill gas, which is rich in methane, is captured and burned to produce heat or electricity, it can replace electricity generated by burning fossil fuels, which are a major source of carbon dioxide. This process contributes to a net reduction in CO2 emissions. Additionally, implementing other strategies such as decreasing livestock agriculture and planting more environmentally-suitable plants are effective approaches to reducing greenhouse carbon dioxide levels. It is essential to note that gases such as carbon dioxide, methane, and nitric oxide are significant contributors to global warming, while oxygen is not. Thus, capturing landfill gas is part of a comprehensive approach to mitigate the impact of human activities on climate change.

Answer 2

Capturing gas emitted from landfills results in a decrease of CO2 production, because it prevents the release of methane, a potent greenhouse gas, and reduces reliance on CO₂-heavy fossil fuels (option b).

Step-by-step explanation:

Capturing gas emitted from landfills results in a decrease in CO₂ production. When landfill gas (which consists largely of methane, a potent greenhouse gas) is captured and burned to produce energy, it prevents methane from being released into the atmosphere and allows it to be used as an energy source. The combustion of methane generates CO₂; however, since methane is about 28-36 times more potent as a greenhouse gas than CO₂ over a 100-year period, the net effect is a reduction in the greenhouse impact. This process concurrently reduces the demand for fossil fuel-derived energy, which is a major source of CO₂ emissions, thus leading to an overall decrease in CO₂ production.

Hence, the answer is option b.