Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
What is our environment?
|
Sum total of our surroundings
|
|
|
What are biotic and abiotic factors?
|
-Biotic=living factors
-Abiotic= nonliving factors |
|
|
What is environmental science?
|
-Explores interactions between humans and the environment
-Study of how the natural world works, how it effects us and we effect it |
|
|
What are natural resources?
|
-Vital to our survival, various substances and forces we need to survive
-Renewable= unlimited, can be replenished -Nonrenewable= limited, can run out -Population shapes relationship with resources |
|
|
What was the Agricultural Revolution?
|
-10,000 years ago
-Transition from hunter-gatherer to agricultural way of life |
|
|
What was the Industrial Revolution?
|
-Mid-1700s
-Shifting from rural agriculture to urban society powered by fossil fuels |
|
|
Who was Thomas Malthus and what did he believe?
|
-Claimed unless population growth was controlled the number of ppl would outgrow food supply
-But this would be checked by famine, war, disease |
|
|
Who was Paul Ehrlich and what did he believe?
|
-Rapidly increasing population would bring famine and war
-Population control was the only way to avoid this -Global food crisis in the future |
|
|
Who was Garrett Hardin and what did he believe?
|
-"Tragedy of the Commons"
-Analyzed ow ppl approach resource use -Resources that are open to the public will be depleted |
|
|
What is the ecological footprint?
|
-Environmental impact of an individual or population in terms of amount of land and water required to produce materials and handle waste
-Wackernagel and Rees |
|
|
What are factors that should be considered when addressing an environmental problem?
|
A person's race, gender, class, sex, ect.
|
|
|
What an interdisciplinary approach?
|
-Environmental studies is both natural science and social
-Combining two or more courses into one course of study |
|
|
What is environmentalism? Is it different from environmental science?
|
-It is a social movement dedicated to protecting the natural world from human changes
-E. science is the pursuit of knowledge about the environment |
|
|
What is the scientific method? What are the assumptions?
|
-Technique for testing ideas with observations
-Assumptions= universe functions with natural laws, all events have a cause and cause other events, we can use our senses to detect and describe natural laws |
|
|
What are the steps of the scientific method?
|
1. Observation
2. Ask a question 3. Hypothesis 4. Prediction 5. An experiment= with independent (changed) and dependent variables (depends on other variable). Controlled experiment= control (unmanipulated point), treatment (manipulated) 6. Correlation between variables 7. Collect data 8. Analyze and interpret results 9. Test alternative hypothesis (maybe) |
|
|
What is a manipulative experiment?
|
Researcher actively chooses and manipulates the independent variable
|
|
|
What is a natural experiment?
|
One in which the variable cannot be manipulated
|
|
|
What is ecology?
|
-Both manipulative and natural experiments are used
-Deals with the distribution and abundance of organisms and the interactions among organisms and their environments |
|
|
What is peer review?
|
-When other scientists examine and comment on an experiment
-Professional conferences |
|
|
What is a theory?
|
A hypothesis repeatly tested can be modeled into one.
|
|
|
What are paradigm shifts?
|
-Paradigm= a dominant view regarding a topic based on facts gained from experiments
-One paradigm is abandoned for another (Thomas Kuhn) |
|
|
What are some challenges we face in the near future?
|
-Advancing technology has enabled us to grow more food per unit of land, but more pollution is created
-Artificial chemicals pollute -Political will is crucial to address climate change |
|
|
What is biodiversity and what are problems we are facing with it?
|
-Degree of variation of life forms
-Introduction of non-native species causes problems -Diversity and number of living things is going down |
|
|
What are some solutions we are creating?
|
-Technological advances and new laws are decreasing pollution
-Advances in conservation biology are helping protect species -Recycling and renewable energy sources are increasing |
|
|
What is sustainability?
|
-Living within our resources so that they sustain us for the future
-Sustainable development= using renewable and nonrenewable resources to satisfy current needs without compromising their future |
