Bio Ch 6 Agriculture, Human Population, & Energy Practice Flashcards
Explain how Traditional, Organic, and Sustainable agriculture differ
Traditional agriculture - uses of human/animal power and simple machines. Different crops are planted in one field.
- overuse of synthetic fertilizers and pesticides in agriculture leads to higher emissions of nitrous oxide, a gas that is 300 times more powerful than carbon dioxide
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A population of 1,000, with a per capita growth rate of 0.5 and a carrying capacity of 5,000, is undergoing logistic growth. What will the population size be after 1 year? After 2 years?
1- year 1,400
2 years 1,800
Describe the pattern of human population growth over the last 300 years. What allowed the human population to exhibit this pattern?
Due to the world overpopulating and it would reach max capacity rate
Based on data from a range of countries, what things cause a decrease in the human fertility rate and which of these has the greatest effect?
- Women going to school
- more contraseptives
- more health care
How did coal form
by compressed plant material
How did oil form
compressed of algae
What is “peak oil” and why does it matter when considering agriculture and the human population?
the phenomenon whereby global oil supplies will peak
Oil peaked in 2000’s worldwide and in the 1970s in the U.S
Explain what the greenhouse effect is and what it has to do with climate change.
greenhouse effect is the way in which heat is trapped close to Earth’s surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.
Considering the specifics of agriculture, human population, energy, and climate change in the future, then what ought to be done and why?
-Women with more education
- burn fewer fossil fuels
- grow a variety of different crops
