11.6 Examples a 4 + 12a 2 + 35 = 0 We factored this in class, but I want to show you how to do it by substitution: Let u = a 2 u2 = a4 So now we have: u 2 + 12u + 35 = 0
This can be factored like we did in class: (u + 7)(u + 5) = 0 So: u+7 =0 u = 7 or u+5
Locations of the Humid Tropics
Tropical Rain Forest Ecosystems
Most are located north of the equator
Three major tropical rain forests
South American Rainforest
THEORIES OF HUMAN-HABITAT INTERACTION
Main themes concerning people and their interaction with
The problem with these themes is that they see the
relationship between humans and their
Securing and Managing Water
Exploitation of groundwater
Harnessing of surface runoff
Diversion of water to agricultural fields
Flexible Forms of Social Organization
Nomadic Lifestyle [gr
Human Adaptability to Grasslands
Grasslands occur both naturally and as a result of human
intervention, both intentional and unintentional.
Grasslands have inadequate supplies of precipitation for
agriculture but are not yet as arid
Studies of Human Adaptability:
Where is the Arctic?
Whats in a name?
Eskimo will not be used in reference to the Arctic peoples.
Eskimo means eater of raw flesh which is considered a
Instead we will use the te
ENVIRONMENT, TECHNOLOGY, AND CULTURE
In this course we will take the approach that humans are just
one organism we will consider with in an ecosystem as a
We will look at how humans exploit different niches and make
use of dif
Huge gaps between rich and poor
Have not been green in the past
Largely consumers of biomass produced by photosynthesi
FUNDAMENTAL CONCEPTS AND METHODS
THE CHALLENGE OF SCALE AND LEVELS OF
Global ecology is a HUGE system to try to understand.
ontemporary discussions about human impact on the global
environment must involve ecosystem mode