Final answer:
The most likely contributor to acid rain in Canada would be the emissions of sulfur dioxide and nitrogen oxides from the combustion of fossil fuels. These emissions lead to sulfuric and nitric acids in the atmosphere, causing environmental damage. Efforts to mitigate acid rain have historically included the installation of scrubbers in coal-fired power plants.
Step-by-step explanation:
Among the options given in the chart showing Canada's Global Greenhouse Gas Emissions for the year 2010, emissions of sulfur dioxide (SO2) and nitrogen oxides (NOx) from the combustion of fossil fuels would be the most likely contributors to acid rain in Canada. These emissions can come from a variety of sources such as coal and gas power plants, industrial processes, and vehicles.
Acid rain results from these emissions interacting with water vapor in the atmosphere to form sulfuric acid and nitric acid. The resulting acidic precipitation can lead to environmental harm by lowering the pH of soil and water bodies, harmful to wildlife, and damaging forests, buildings, and human health. The reference to coal-fired power plants adopting technology to scrub these harmful emissions indicates a historical effort to mitigate this issue, yet the challenges persist.
Importantly, the scientific consensus on global climate change is that human activities, particularly the burning of fossil fuels, are the primary driver of these environmental changes, leading not only to increased greenhouse gas emissions but also contributing to other environmental issues like acid rain.