5.9
Commercially valuable deposit of concentrated minerals that can be harvested and used as raw materials.
ore
What is non-renewable source of energy?
Answer:Source of energy that WILL run out or will not be replenished in our lifetimes.
basic unit of energy
joule
Biomass fuel sources that are easily accessible, often used in developing countries as a home heating or cooking fuel.
what is Subsistence Fuels
Decaying organic matter trapped under rock layers is compressed into oil over time-
Crude oil(petroleum)
Soil, vegetation, & rocks that are removed to get to an ore deposit below.
overburden
What are fossil fuels made out of?
Fosill fuels are made from decomposing plants and animals
what do the people in less developed nations usually depend on for energy?
subsistence fuels
product of Decaying remains of plants & animals buried under layers of rock converted by pressure
A: what is natural gas
Which country has the top ff energy reserve of oil? (Iraq, Saudi Arabia, Canada, Venezuela, Iran?)
Answer: Venezuela
What are Open pit, Strip, Mountaintop removal, Placer?
Answer: Surface Mining types
How can we reduce global energy consumption?
Switch to renewable energy source.
do developing or developed nations use more energy on a per capita basis?
developed
: product of overlying rock and sediment layers compacting peat.
A: coal
Hydrocarbons in petroleum are used for a variety of products.
-Gasoline (fuel for cars)
-naphtha
-bitumen
Surface mining effects on soil
most soil removed from site; may be replaced if reclamation occurs
What is the meaning of energy consumption:
Answer: Energy consumption is the total amount of energy required for a given process and it is measured in kilowatt hours (kwh)
why do developing nations use more energy overall?
higher population
a thick, sticky, semi-solid form of petroleum
a: what is Bitumen
Identify a region of the world that is likely to be a large producer of natural gas.
-middle east
-north america
-parts of africa
How do you restore land after overburden has been replaced?
1. Contour land back to original topography
2. Add any nutrients that were stripped during mining
3. Plant vegetation to restore the habitat
What is the problem with global energy consumption?
Currently, too much of the global energy created uses sources that emit carbon dioxide and other greenhouse gasses. As long as this practice continues, the warming effect caused by increased greenhouse gasses in our atmosphere will harm ecosystems, animals and human life on earth.
From 2005 to 2018, the annual investment in renewable energy sources in the United States increased from $11.4 billion to $46.5 billion. Calculate the percent change in renewable energy investment in the US from 2005 to 2018.
2005 to 2018 is 308%.
Which of the following emits the most amount of nitrogen oxides per billion btu of energy input: Natural gas, oil, or Coal?
A: what is coal
Geographical features associated with production of natural gas.
-sandstone beds
-shale formations
-coal seams