Hydrosphere
What is by far the leading cause of water pollution?
agricultural activities
What is a healthcare issue that can be caused directly by ozone layer depletion?
Skin cancer and cataracts
Which phrase best describes biodiversity?
The number of species in an ecosystem
True or false: Aquifers are much like underground lakes or caverns holding mostly still water that moves very slowly.
False
What relationship is a mutualism?
+/+ (both organisms benefit)
Large dams and reservoirs do what......
Disrupt ecosystems
What chemical is primarily responsible for ozone depletion?
Chlorofluorocarbons (CFCs)
An organism that has an unusually large effect on an ecosystem is called a(n)...
keystone species.
True or False: Greenhouse gases are present in the air we breathe and both trap and release heat, warming the troposphere.
True
Which of the following best describes commensalism?
One organism benefits while the other is neither helped nor harmed
What aquatic ecosystem receives the vast majority of the global inputs of pollution?
coastal parts of the ocean
1. Photochemical smog forms from a reaction between VOCs, NOx, heat, and....
2. The primary source of excess carbon dioxide in the atmosphere is
1. Sunlight
2. burning fossil fuels
What is carrying capacity?
The maximum number of individuals an environment can support sustainably
True or False: Eutrophication is the natural nutrient enrichment of a shallow lake, estuary, or slow-moving stream.
True
What change would most likely cause a mutualistic relationship to shift toward parasitism?
One species gaining an adaptive advantage that increases its benefit at the expense of the other
According to water resource experts, what is a main cause of water waste?
industrial agricultural practices and over irrigation
The correct sequence of layers of the atmosphere from the earth’s surface to space is the....
troposphere, stratosphere, mesosphere, and thermosphere
What will increase the size of a population?
Immigration and Births
True or False: Drip irrigation systems are highly efficient in getting water to crops, with 90 to 95% of water reaching plant roots rather than being wasted.
True
A tapeworm lives in the intestine of a human host and absorbs nutrients. Which evidence would best support classifying this interaction as parasitism rather than commensalism?
The host experiences nutrient deficiency
1. What causes artificial eutrophication?
2. Which of these is the best way to control artificial eutrophication?
1. input of nutrients from human activities
2. use fertilizers sparingly
1. What is the main difference between weather and climate?
2. Which time frame is used to describe climate rather than weather?
3. A meteorologist forecasting tomorrow’s temperature is studying:
4. A climatologist would most likely study:
1. Weather describes short-term conditions; climate describes long-term patterns.
2. Thirty years
3. Weather
4. The average temperature of a region over 50 years
1. In an energy pyramid, which trophic level contains the most available energy?
2. What happens to the amount of energy as it moves up the food pyramid?
1. Producers
2. Energy is lost as heat and decreases as you move up the food pyramid
True or false: Desalination supplies a large portion of the world's drinking water.
False
A bacterium lives on the surface of a plant root and produces chemicals that deter herbivores. The plant provides no known benefit to the bacterium. Which term best describes this interaction?
Commensalism