Module 2: Water, Soil, and Air Quality

Water is a very important commodity for human life and survival.  We need to consume it to stay alive and use it to clean our food, utensils, clothes, bodies, and surrounding to prevent disease. Unfortunately, this same water is responsible for about 80% of all diseases in developing countries and over three million deaths a year globally. Soil is an essential and one of the crucial oikos (home) of living organism. Its composition determines the distribution of plant, animal species also determines the physical and chemical nature of rocks, landforms, and rivers. The major natural water flows are controlled by soil type and also flow of water and chemical components between atmosphere and hydrosphere are sole determined by soil. It is also a source of many gasses (such as oxygen and carbon-dioxide). Soil not only has a profound effect on human civilization but also influence the economic and cultural heritage of that particular location. Soil holds the food prints of the past and agriculture shapes the economic growth of land life (Mishra et al. 2012). Atmosphere refers to the layer of gases that surrounds Earth and is held in place by Earth’s gravitational attraction (gravity).  The mix of gases in the atmosphere forms a complex system organized into layers that together support life on Earth.  It is therefore very important that we understand why these important commodities can be vital and at the same time cause so much harm. This chapter is devoted to the availability and quality of water, soil and air. Water, soil and air quality will be defined as the physical, chemical and biological properties of these vital components of the environment that impact its intended use. This definition recognizes that quality designations of any can vary depending on the purpose it is serving.

1. Explain the hydrologic cycle and its importance for living organisms.
2. Classify the different types of water and their availability for human consumption.
   
3. Explain the world's environmental need for water management to prevent water scarcity.
4. Identify how water is being polluted.
5. Explain how burning fossil fuel contribute to pollutants in the environment.
6. Acknowledge how air quality management is important for a clean and healthy atmosphere.

1. Read the Module 2 Introduction.
   
2. Read Chapter 2 in Pressbooks.
   
3. Complete the Chapter 2 Focused Reading Quiz.

Module Pressbooks Resources and Activities