Water
Discuss a human impact on water
Answers may vary
What is a populations carrying capacity?
The maximum amount of resources that the population can sustain.
Greenhouse gases capture energy that should be reflected back into space. The more greenhouse gases the more energy captured=warmer atmosphere.
What are the three types of biodiversity?
Habitat, species and genetic
What are the three types of Environmental Value Systems
Anthropocentric, Technocentric, Ecocentric
Evaluate a strategy that could be used to meet an increasing demand for fresh water.
Answers may vary
Ex
Dam: Pros: allows carbon free energy and water source for diversion and storage Cons: Destroys river ecosystems
What is the chemical formula for photosynthesis? (can use words?) How does this associate with climate change?
Water+CarbonDioxide+(sunlight)--->Oxygen +Glucose
Photosynthesis takes in carbon dioxide from the atmosphere. Carbon dioxide is a greenhouse gas.
How did international agreement lead the reduction in the ozone hole?
Montreal Protocol: Countries agreed on reducing and banning CFC's across the board--that lead to overall reduction in the atmosphere.
Describe a species that is endangered and a species that has been recovered
endangered (mountain gorilla, red panda, sea lions, rhinos)
Recovered (Bald Eagles, Gray Wolf, Panda)
In a systems diagram--what do boxes represent and what do arrows represent?
Arrows: Flows or Transformations
Aquaculture can supplement declining ocean fisheries--though it needs to be implemented sustainably
How much energy moves up each trophic level? Where does the remaining energy go?
10%, remaining energy is used by the plant for respiration or is lost as heat
Discuss factors that affect energy security for a country.
geography, economics, politics
An individual wants to determine the biodiversity of an area? What should they do?
Create a sampling method plot and use the biodiversity, simpsons index.
Describe the ecological tipping point
The point in which the ecosystem cannot return to normal
Explain the process and impacts of eutrophication
Eutrophication is when excess fertilizer causes an algae bloom-->that blocks out sunlight-->increase decomposition-->bacterial growth-->low oxygen-->fish and organism kills
Describe the process of bioaccumulation and provide an example of it in the real world.
Bioaccumulation is the buildup of molecules through the food chain.
Examples: DDT, Mercury, PFA's(forever molecules)
What is the usefulness of providing a numerical value on biodiversity?
It allows it to be measured to increase protection, etc.
What is a person ecological footprint & why is it a useful tool?
The amount of resources that an individual uses based off food, transportation, housing and energy. It quantifies our impact as resources on the planet.
How are bioindicators a useful way in measuring pollution?
They give an assessment of how the organisms are being impacted by the pollution.
What is the difference between r and k strategies and which one might be more equipped with the effects of climate change and habitat loss?
R strategist have a large number off offspring but they do not care for their young
K strategists have a small number of offspring but do care for their young
Discuss the feedback mechanism that would be associated with a change in mean global temperature
Positive Feedback: Warmer global temperature-->tundra soil melt-->release of stored methane--> more greenhouse gas release--> warmer global temperature
Evaluate the impact of human activity on the the biodiversity of the tropical biomes
Neg: Destruction logging, cash crops, agriculture
Pos: Programs for protection and conservation
What are the 3 levels of intervention found in the management strategies?
1. Alter the human activity producing the pollution
2. Regulate and reduce the pollution at the source
3. Clean up and restore the damaged system