ENVIR 100 EXAM 3- PART 2 QUESTIONS
AND ANSWERS 100% PASS
What does peak oil mean? - ANS The point when maximum oil production is reached, after
which production declines.
Why does peak oil happen? - ANS Fossil fuel supply is finite.
What is power? - ANS The rate at which work is done (energy per second).
What are watts? - ANS A measure of power = joules per second.
How many watts does the human body use? - ANS About 100 W.
How many watts does a waterwheel produce? - ANS About 2,000 W (2 kW).
What are oil and gas made of? - ANS Hydrocarbons from ancient photosynthetic organisms.
What is coal made from? - ANS Ancient swamp plants buried under pressure.
What do all fossil fuels represent? - ANS Stored solar energy.
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, What are fossil fuel reserves? - ANS Resources economically viable to extract with current
tech & prices.
What are conventional reserves? - ANS Easily accessible fossil fuels.
What are unconventional reserves? - ANS Difficult-to-extract fuels like tar sands and fracking.
Why are all fossil fuel reserves nonrenewable? - ANS They form much slower than we extract
them.
Which country has the largest coal reserves? - ANS United States (28%).
What countries have major oil reserves? - ANS Venezuela, Saudi Arabia, Canada, Iran, Iraq,
Kuwait, Russia.
What is secondary oil extraction? - ANS Injecting water to increase pressure and push more
oil up.
What is tertiary extraction? - ANS Injecting steam to thin oil so it flows easier.
What is fracking? - ANS Pumping water, sand, and chemicals into rock to release oil/gas.
What are the environmental issues with fracking? - ANS Groundwater contamination,
earthquakes, prolongs fossil fuel dependence.
How did England increase coal use in the 1500s? - ANS Banned wood + subsidized coal.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
AND ANSWERS 100% PASS
What does peak oil mean? - ANS The point when maximum oil production is reached, after
which production declines.
Why does peak oil happen? - ANS Fossil fuel supply is finite.
What is power? - ANS The rate at which work is done (energy per second).
What are watts? - ANS A measure of power = joules per second.
How many watts does the human body use? - ANS About 100 W.
How many watts does a waterwheel produce? - ANS About 2,000 W (2 kW).
What are oil and gas made of? - ANS Hydrocarbons from ancient photosynthetic organisms.
What is coal made from? - ANS Ancient swamp plants buried under pressure.
What do all fossil fuels represent? - ANS Stored solar energy.
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, What are fossil fuel reserves? - ANS Resources economically viable to extract with current
tech & prices.
What are conventional reserves? - ANS Easily accessible fossil fuels.
What are unconventional reserves? - ANS Difficult-to-extract fuels like tar sands and fracking.
Why are all fossil fuel reserves nonrenewable? - ANS They form much slower than we extract
them.
Which country has the largest coal reserves? - ANS United States (28%).
What countries have major oil reserves? - ANS Venezuela, Saudi Arabia, Canada, Iran, Iraq,
Kuwait, Russia.
What is secondary oil extraction? - ANS Injecting water to increase pressure and push more
oil up.
What is tertiary extraction? - ANS Injecting steam to thin oil so it flows easier.
What is fracking? - ANS Pumping water, sand, and chemicals into rock to release oil/gas.
What are the environmental issues with fracking? - ANS Groundwater contamination,
earthquakes, prolongs fossil fuel dependence.
How did England increase coal use in the 1500s? - ANS Banned wood + subsidized coal.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
