click below
click below
Normal Size Small Size show me how
bio final exam
bio final exam (chapter 12)
Question | Answer |
---|---|
petroleum, natural gas, and coal | examples of fossil fuels |
largest consumer of energy in the US | industry |
organic compounds derived from decomposed plants, algae, and other organisms buried in the rock layers | fossil fuels |
countries that make up two-thirds of coal reserves in the world | US, Russia, China |
what does coal release into the air? | mercury, arsenic, chromium, and led |
how does petroleum plants effect the environment? | they create 15 million cubic meters of toxic sludge; release 5000 tons of greenhouse gases; consume billions of liters of water each year |
world's third largest commercial fuel | natural gas |
another name for nuclear fission | splitting |
explain how nuclear reactors work | radioactive uranium atoms are struck by neutrons, they split, and then release energy and more neutrons |
is plastic biodegradable? | no |
mergers of multiple municipalities | urban agglomerations |
cities with populations of over 10 million people | mega cities |
what drove people off the land and into cities in countries like the US and china? | mechanization |
reasons people willingly move to cities? | better jobs, better housing, entertainment, and freedoms from constraints of village conditions |
how many people worldwide don't have drinking water? | 1.1 billion |