1. What are the two key characteristics that determine a biome? - Rainfall and Temperature
2. Iowa has the right climate to be a lot of different biomes. Why is Iowa historically a prairie? - Fire
3. What is the name of the layer of frozen ground in the tundra? - Permafrost
4. True or False: Tropical rain forests have rich soils. - False
5. What drives the variance in prairie (tall grass vs. short grass) in North American grasslands? - Rain
6. Who was the first person to worry about population growth? - Thomas Malthus
7. What is the rate of natural increase equation? - Births - Deaths
8. What is the number of children an average woman in the population would be expected to have over
her reproductive lifetime? - Total Fertility Rate
9. What is the relationship between Total Fertility Rate (TFR) and education rates in women/ girls? - As
education rates increase, TFR decreases
As education rates decrease, TFR increases
10. What is the rate of population growth currently? - 1.1% and is decreasing
11. Which continent is predicted to grow the fastest by the end of the century? - Africa
Where does the United States rank in terms of population of the 196 countries? - 3rd
, 13. True or False: Every country's population will increase in the next 50 years. - False
14. How can we most effectively lower Total Fertility Rate? - Education of Women
15. True or False: Most people live in rural areas. - False
16. True or False: More people in the world have access to a cell phone than have access to an indoor
toilet - True
17. True or False: Soil is considered a renewable resource. - False
18. According to Lee Burras, what is soil? - Terrestrial media capable of supporting plant life
19. What fraction of nutrients come from the soil? - 12/17
20. Which situation would cause a faster death in plants? - No gas exchange
21. Which component of soil has a large pore space? - Sand
22. Which component of soil is chemically reactive and has poor aeration? - Clay
23. Which component of soil holds plant available water? - Silt
24. Squaw Creek has lost a lot of OM. Where is most of the OM now? - As CO2 in atmosphere
25. What causes more flooding? - Decrease in soil porosity
26. True or False: Soil is chemically reactive. - True
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller oneclass. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.48. You're not tied to anything after your purchase.