Chemistry is covered at just the right depth for students to develop a thorough understanding of natural processes.Chemical processes shape the world we live in; the air we breathe, the water we drink, the weather we experience. Guiding us through the chemical composition of the three key environmental systems; the atmosphere, hydrosphere, and terrestrial environment; the authors explain the chemical processeswhich occur within and between each system, allowing for better understanding of how they behave. We then see how human activity continues to affect the chemical behaviour of these environmental systems, and what the consequences of these natural processes being disturbed can be.