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Practice Reading: Fill in the Blanks (Dropdown) ID: #47182 Research establishments
Instructions
Research    establishments    and    university    departments    around    the    world    have    years    of    research    time    in    all    aspects    of    caves,    mainly    their    origins,    their    hydrology    and    their    biology.    Caves    constitute    a    small    but    rather    mysterious    of    the    natural    environment    as    such    they    our    curiosity    and    challenge    our    desire    for    knowledge,    and    consequently    have    had    a    considerable    amount    of    research    effort    to    them.    Furthermore,    because    of    their    presence    as    natural    phenomena,    they    have    had    a    long    history    of    study,    which    has    been    intensified    in    those    parts    of    the    world    where    caves    have    had    a    direct    effect    on    our    way    of    life.    However,    the    physical    required    to    visit    many    caves    means    that    cave    research    has    been    less    in    the    hands    of    the    learned    professors    than    in    most    other    scientific    fields.    Indeed    there    is    a    considerable,    perhaps    unique,    between    the    professional,    scientific    study    of    caves    and    the    amateur    studies    carried    out    by    those    who    mainly    visit    caves    for    sport.  

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