Which energy resources might replace dwindling petroleum supplies one day? Placer
deposits
form when________. Which of the following is a nonmetallic mineral resource?
What could be a good substitute for dwindling petroleum supplies?
The main alternatives to oil and gas energy include
nuclear power, solar power, ethanol, and wind power
.
What are the advantages and drawbacks of hydroelectric geothermal and tidal power?
What are the advantages and drawbacks of hydroelectric power, geothermal energy, and tidal power?
Hydroelectric dams are renewable but have finite lifetimes
. Geothermal energy is clean but also has a finite lifetime. Tidal power is clean and renewable but is expensive and can harm the environment.
Which of the following is a drawback to the use of oil shale to produce energy?
Which of the following is a drawback to the use of oil shale to produce energy?
Processing, mining, and waste disposal are expensive
.
Which will most likely occur before a volcanic eruption?
Continental rift. Which will most likely occur before a volcanic eruption?
Increase in earthquake activity
. A rural, forested area receives a lot of rain in a short amount of time.
What was the most important law passed to deal with air pollution?
What is the RCRA and what does it do?
The Clean Air Act
, the most important air pollution law, was passed in 1970.
Why tidal power is bad?
Tidal power
can damage marine life
, as tidal turbines with their rotating blades may lead to deaths of living creatures in a sea. Noise from the rotation of the turbines may also impact fish habitations in tidal power locations. Tidal energy can also impact the quality of water and sediment processes.
What are 3 disadvantages of geothermal energy?
- Environmental Concerns about Greenhouse Emissions. …
- Possibility of Depletion of Geothermal Sources. …
- High Investment Costs for Geothermal System. …
- Land Requirements for Geothermal System to Be Installed.
What is wrong with tidal power?
Spinning blades may injure or kill aquatic species
. A coastal barrage for tidal energy might upset an entire estuarial ecosystem. Mechanical devices also can leak lubricants and emit noises that make trouble for fish and aquatic mammals.
What rock is oil found in?
Oil shale is
a type of sedimentary rock
that is rich in kerogen. Kerogen is a part of rock that breaks down and releases hydrocarbons when heated. Hydrocarbons are substances made entirely of hydrogen and carbon. Petroleum and natural gas are probably the most familiar hydrocarbons.
What is the dirtiest oil?
California Environmental Protection Agency study
The world’s dirtiest oil is
the Brass crude blend from Nigeria
, where uncontrolled release of methane during the oil extraction process generates upstream GHG emissions more than four times higher than Canadian diluted bitumen.
Is shale oil better than crude oil?
Shale oil is
a substitute for conventional crude oil
; however, extracting shale oil is more costly than the production of conventional crude oil both financially and in terms of its environmental impact. Deposits of oil shale occur around the world, including major deposits in the United States.
Can a volcano erupt without warning?
Steam-blast eruptions
, however, can occur with little or no warning as superheated water flashes to steam. Notable precursors to an eruption might include: An increase in the frequency and intensity of felt earthquakes. Noticeable steaming or fumarolic activity and new or enlarged areas of hot ground.
What is the difference between magma and lava?
Scientists use the term
magma
for molten rock that is underground and lava for molten rock that breaks through the Earth’s surface.
Can we predict when a volcano is going to erupt?
Volcanologists can predict eruptions—if they have a
thorough understanding of
a volcano’s eruptive history, if they can install the proper instrumentation on a volcano well in advance of an eruption, and if they can continuously monitor and adequately interpret data coming from that equipment.
Does the Clean Air Act still exist?
The Clean Air
Act “has survived, but it has been damaged because of the constant attacks
,” Ali said. Particularly devastating has been the administration’s effort to undermine the law’s most important pillar, its grounding in science.
