“12th Class Chemistry Chapter 16: Environmental Chemistry” covers the chemical processes that take place within the environment, especially those involving air, water, and soil quality. The present chapter deals with the effects of human activities on the environment, the role of chemicals in environmental pollution, and how to control and reduce the causes of environmental degradation. Knowledge of environmental chemistry is important for dealing with various issues relating to climate change and sustainability. Learn more with our MDCAT Quiz and free flashcards to ace this very important chapter.
Environmental Pollution and Its Impact
Environmental pollution is the major concern today, mainly due to human-induced activities like industrial emissions, agricultural practices, and improper waste management. In this chapter, you will learn about various types of pollutions such as air, water, soil, and noise pollution.
Air pollution is caused by the emission of dangerous chemicals such as carbon monoxide, sulfur dioxide, and nitrogen oxides into the atmosphere. The sources of these pollutants are the burning of fossil fuels in vehicles and industries. On the other hand, water pollution results from the discharge of dangerous chemicals such as heavy metals, pesticides, and untreated sewage into water bodies.
It also discusses soil pollution, mostly due to overuse of chemical fertilizers and pesticides that result in soil quality degradation. These pollutants destroy the ecosystems, affect biodiversity, and create health risks for both humans and animals.
Chemical Reactions in Environmental Processes
Environmental chemistry also involves comprehending the chemical reactions that control the environment. For instance, acid rain forms through the reaction of sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) with water vapor in the atmosphere. These compounds transform into sulfuric acid and nitric acid, falling to the ground as acid rain and causing damage to both the ecosystems and structures.
One of the key processes in this respect is that related to the greenhouse effect, wherein certain gases, including carbon dioxide and methane, retain heat within the Earth’s atmosphere, consequently leading to global warming. The role of ozone in the atmosphere, whereby the destruction of ozone by chlorofluorocarbons, leads to increased levels of damaging ultraviolet radiation reaching the Earth’s surface, is also explored.
MDCAT Quiz: Environmental Chemistry
Test your knowledge in environmental chemistry using our MDCAT Quiz, which includes important topics such as types of pollution, chemical reactions in the environment, and ways to fight against pollution. It will help to consolidate your knowledge and prepare you for related questions in your exams.
Free Flashcards for Environmental Chemistry
Review the key concepts with free flashcards on environmental chemistry. The flashcards will help you quickly revise some of the key terms in pollutants, environmental processes, and their health and ecosystems effects. They’re perfect for reinforcing your knowledge and improving retention of crucial concepts.
Environmental chemistry is a very essential subject in understanding and addressing the environmental challenges we are faced with today. Master this chapter using our MDCAT Quiz and free flashcards, ensuring a solid grasp of the subject and preparing you for your exams.
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