BPK 140 Chapter 15: Chapter 15 Textbook Notes

• School: Simon Fraser University
• Department: Biomedical Physio & Kines
• Course: BPK 140
• Professor: Anne- Kristina Arnold

Document Summary

Water evaporates from the surface of the earth; these water molecules go into the air, rise up, and collect in clouds. Motor vehicles and coal fired power plants are the major sources of nitrogen oxides thousands of lakes in canada have been affected, especially fish, insects, aquatic plants, and bacteria food chain is affected due to dwindling populations. Most ominous air pollution issue humans currently face is climate change. Weather refers to the current state of the atmosphere (ex. whether it is hot or cold, wet or dry) Melting of ice affects animal life; some parts of the globe will be hotter and drier this will hurt crops which will make it harder to feed the global population. Land to produce food agricultural advances allows humans to transition from nomadic to more settled lives, and lead the formation & growth of cities recently, humans have become increasingly distanced from the production of food.