Skip to main content
K12 LibreTexts

20.12: Earth's Energy- Challenge 2

  • Page ID
    6085
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)\(\newcommand{\AA}{\unicode[.8,0]{x212B}}\)

    1. Coal is a solid ___.
    hydrocarbon
    2. Our dependence on fossil fuels is alarming because they are ___ and they emit ___.
    non-renewable; greenhouse gases
    3. Natural gas is a ___ hydrocarbon.
    gaseous
    4. Anthracite is a ___ rock.
    metamorphic
    5. ___ is the highest quality type of coal, used primarily for residential and commercial space heating.
    Anthracite
    6. Coal mining exposes the element ___, which reacts with air and water to form a highly corrosive chemical.
    sulfur
    7. Crude oil must be ___ to be useful.
    refined
    8. The Gulf of Mexico, Texas, and Alaska are major ___ in the U.S.
    oil-producing regions
    9. Crude oil is a mixture of many different ___.
    hydrocarbons
    10. ___ undergoes nuclear fission in a nuclear reactor.
    Uranium
    11. To generate power, nuclear power plants ___, causing them to ___ and release energy.
    hit uranium atoms in fuel rods with tiny particles; split apart
    12. Nuclear power is not completely clean because ___ and ___.
    uranium must be mined from the earth; radioactive wastes created by power nuclear fission cannot be safely disposed.

    This page titled 20.12: Earth's Energy- Challenge 2 is shared under a CK-12 license and was authored, remixed, and/or curated by CK-12 Foundation via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.

    CK-12 Foundation
    LICENSED UNDER
    CK-12 Foundation is licensed under CK-12 Curriculum Materials License
    • Was this article helpful?