Animals in the wild are extremely vulnerable due to pollution creating acid rain, persistent organic pollutants, heavy metals, and also heavy metals. Due to pollution creating acid rain, it can change the chemistry and quality of soil and water. “Water sources can lead to them being too acidic for animals to drink from which can lead to death and/or decrease in physiological functions,” (Gov. of Canada). Air quality also affects the quality of food supply for animals as well. As animals hunt on other animals, pollutants are stored inside animal’s tissues when they consume foods affected by pollution. Not only pollution affects land animals, it also affects marine animals. Humans are a main part of the reason why because farmer’s fertilizer chemicals runoff into waterways that end up into the ocean. The most commonly known pollutant we know is trash, mainly plastic. Trash becomes a dangerous factor for marine animals. “Fish can be tangled in the debris, and others can mistake it for food and eat it,” (National Geographic).  Trash in the ocean is a tragedy due to the fact that it can take 100 years for it to decompose.