Skip to main content
K12 LibreTexts

21.6: Earth's Materials- Challenge 1

  • Page ID
    6121
  • \( \newcommand{\vecs}[1]{\overset { \scriptstyle \rightharpoonup} {\mathbf{#1}} } \) \( \newcommand{\vecd}[1]{\overset{-\!-\!\rightharpoonup}{\vphantom{a}\smash {#1}}} \)\(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\) \(\newcommand{\id}{\mathrm{id}}\) \( \newcommand{\Span}{\mathrm{span}}\) \( \newcommand{\kernel}{\mathrm{null}\,}\) \( \newcommand{\range}{\mathrm{range}\,}\) \( \newcommand{\RealPart}{\mathrm{Re}}\) \( \newcommand{\ImaginaryPart}{\mathrm{Im}}\) \( \newcommand{\Argument}{\mathrm{Arg}}\) \( \newcommand{\norm}[1]{\| #1 \|}\) \( \newcommand{\inner}[2]{\langle #1, #2 \rangle}\) \( \newcommand{\Span}{\mathrm{span}}\)

    1. Paper can be made mostly or entirely from ___.
    renewable resources
    2. Electronics need specific materials known as ___.
    rare earth elements
    3. A ___ resource is unlimited or replenished as quickly as it is used.
    renewable
    4. ___ resources cannot be replenished fast enough to keep up with human use.
    Non-renewable
    5. ___ form over millions of years from the remains of dead organisms and are mainly comprised of ___.
    Fossil fuels; carbon
    6. Regions where hot fluids came off a magma intrusion often have ___.
    copper deposits
    7. A mineral deposit that is profitable is called an ___.
    ore deposit
    8. Geologists determine the size of the deposit, test the concentration of ore in rock samples, and estimate the total amount of minerals in a ___.
    mineral deposit
    9. A ___ is a type of open-pit mine where rocks and minerals used to make buildings and roads are extracted.
    quarry
    10. Valuable minerals found in stream gravels are called ___.
    placers
    11. Panning for gold in streams works because ___.
    gold sinks to the bottom of the pan
    12. After ore is extracted from a mine, valuable minerals must be separated from ___.
    waste rock
    13. Around the world, humans use over ___ aluminum cans each year.
    80 billion
    14. To save ten gallons of gasoline that would otherwise be used to produce new aluminum cans, ___ used aluminum cans must be recycled.
    400

    21.6: Earth's Materials- Challenge 1 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 conform 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