apes test again
Describe one environmental benefit and one environmental cost of photovoltaic systems
- Does Not produce nuclear waste like a nuclear power plant would which is safer for the environment - The materials used to build these panels can cause or be considered hazardous waste such as cadmium
Describe two ways that governments or industry could promote the use of photovoltaic power systems for homeowners in the future
- Provide info about pv systems - Give an incentive for using pv systems
Describe two ways that homeowners could use passive solar designs and/or systems and for each way explain how it would reduce the homeowners energy costs
- Use positioned windows in the house so in winter sun will entere through the windows and heat the house and in summer the sunlight won't because of the way the windows are positioned and won't go inside the house which lowers the cost of your electricity bill - Install a reflective roof which can block the sunlight and lower the cooling costs.
A cost-benefit analysis done to investigate a proposed mine site would likely take which of the following into account
1,2,3
From the two types of solar systems described on the government website select the system that you think best meets the needs of the homeowners.
A grid-connected solar system is best : easier to install and does not require a battery and saves more money with net metering
Which of the following best explains the process of electricity generation in a hydrogen fuel cell
A. At the cathode, water reacts with oxygen to release hydrogen and heat.
Which of the following is true of carbon as it cycles in nature
A. Carbon dioxide is released during photosynthesis.
Based on the data, which of the following policies would most likely make the greatest reduction in the ecological footprint for all the cities shown in the graph?
A. Setting higher fuel efficiency standards for vehicles
Natural gas is often priced in units of dollars per therm. One of them equals 100,000 BTU's. A certain family uses 600 therms of energy to heat its home annually using a natural gas furnace that is 80 percent efficient. The family is considering replacing its current furnace with one that is 96 percent efficient. Assuming the cost of a therm is .30 which of the following would be the family's annual savings in the cost of home heating
B. 28.80
How many BTU's were consumed in the US in 2017 by consumers that used petroleum as a fuel source
B. 36 quadrillion BTU's
Which of the following is an environmental problems associated with abandoned coal mines
B. Acide drainage
Drawbacks include noise and the release of corrosive chemicals
B. Geothermal
which of the following pairs of statistics would most likely indicate the high quality of life in a country
B. High life expectancy and low infant mortality
If peak electricity use occurs around 2 p.m. in the Los Angeles area and avoiding brownouts is more important for the installers of the PV panels than annual energy output, which of the following PV panel systems would be best to use in the area?
B. No tracking tilted west
Some solar energy systems produce high-temperature water for industrial application and produce steam to run turbines that generate electricity. What type of solar energy system is needed for these kinds of applications
B. a solar collector system using mirror or lenses to concentrate sunlight
A major limitation of using photovoltaic cells to generate electricity is that they
B. do not produce as much electricity on cloudy days
The consumption of mosquitos by bats and the control of flooding provided by tropical forests in mountainous areas of central america are examples of
B. ecosystem services
research team monitoring a local freshwater ecosystem noticed that over the past few years the otter population had declined significantly, while the population of other species remained fairly constant. After running tests the research team determined that mercury levels in the invertebrates and small fish in the ecosystem were very high. In this ecosystem, what role did the otters occupy
B. indicator species
based on the data in the graph, altering human activity in which of the following areas will most benefit plant species
B. introduction of invasive species
The cites treaty has been helpful in protecting endangered animals and plants by
B. listing those species whose products whose international trade is controlled????
the increase in the size of Earth's human population in the last century has been dramatic. Which of the following identifies two major contributions to this increase
B. the industrial revolution and modern medicine
thi s is the locations of the world's largest hydroelectric dam with a generating capacity of 22,500 MW
C
a field is abandoned and an invasive species plant that can live in nutrient-poor soil moves into the field. If the land is later cleared of this invasive species and it is discovered that the soil has an abundance of nitrogen compounds, what conclusion can best be made
C. Bacteria in soil and in root nodules convert free nitrogen into nitrogen compounds.
In the majority of less developed countries, the major source of energy for domestic use is which of the following?
C. Biomass
Which of the following best describes the energy resource used most often for heating and cooking in less developed countries
C. Biomass
How does burning of fossil fuels contribute to the net increase in atmospheric carbon
C. Carbon that has been sequestered underground is added to the carbon cycling between the atmosphere and the biosphere.
Which of the following would most likely result from the deforestation of large areas of tropical rain forests caused by slash and burn agriculture
C. Increased global temperatures
Which of the following is a negative consequence associated with photovoltaic solar cells?
C. The manufacture of photovoltaic solar cells involves toxic metals that can be released into the environment.
Which of the following is a drawback to using biofuels, such as ethanol as a fuel source
C. There is high energy investment in producing and processing the crops needed for ethanol production.
The most populous countries in the world are China, India and
C. US
Which of the following best describes a density-independent factor that controls population size
C. occurrence of droughts and flooding
In the nitrogen cycle illustrated above, nitrification occurs in which of the following steps
C. step 3 Ammonium to Nitrate
This area has low water-flow velocities because flowing water forms a reservoir that can be sued for hydroelectric power generation or recreation
D
If an incandescent light bulb used for lighting has an efficiency rating of 5 percent, then for every 1.00 joule of electrical energy consumed by the bulb, which of the following is produced?
D. 0.05 j of light energy
Which of the following PV panel systems is least effective at producing energy
D. No tracking titled east
Which of the following best describes a benefit of increasing the number of offshore wind farms rather than onshore wind farms
D. Offshore wind farms will produce up to three times as much electricity as wind farms on land because of increased wind speeds offshore.
Construction of a solar power plant is proposed for a desert area near a school . A student has hypothesized that the shade cast by the solar panels will increase the mortality of creosote bush, a native desert plant in the area. Before construction begins, what experimental data should the student collect in order to eventually test the hypothesis
D. The direct sunlight received by creosote bush in the desert area (in kWh/m^2) during a 12-month period
Which of the following would be the best location for a wind farm with ten industrial turbines
D. arranged uniformly on a local farm that has fields and pastureland for dairy and grain production
Many environmentalists consider Egypt's Aswan High Dam on the Nile River to be an ecological disaster. Which of the following is the best evidence to support this viewpoint
E. Most of the nutrient-rich silt that the Nile annually deposited downstream is now deposited behind the dam.