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                  2.    Select words from the list below to complete the following sentences. Some of the
                       words may be used more than once, and you may have to make the word plural or
               change the tense. Do not try to write the words in the spaces.

                              Stratocumulus        altocumulus castellanus

                              altostratus          standing lenticular altocumulus

                              altocumulus          standing lenticular altocumulus
                              cumulus              stratus

                              cirrocumulus         cirrostratus

                       a.    Cumuliform and stratiform clouds can exist at al1 three alti- tude divisions.

                              When they are low they are called just ___________________ and
                              ____________________________ .

                       b.   When cumuliform and stratiform clouds occur at the middle altitudes,
                              they are called __________________ and ____________________ .

                       c.   High-altitude cumuliform and stratiform clouds are called______________ and
                             ____________ .

                       d.  When low stratus or cumulus clouds break up and begin to separate into lines of
                            clouds with  rounded bases, they are often identified as ____________________;
                            the name is a combination of both names because they  could be formed from
                            either ______________________or _______________________ clouds.

                       e.   Middle altitude cumulus clouds that form into lines with small towers are
                             identified as ____________________ .

                       f.   Standing clouds can form at middle altitudes and high altitudes over areas where
                            wind flows over a  line of hills or mountains. The middle altitude standing clouds
                            are identified as ____________ ___________ ,and the high ones are identified as
                            _____________ ______________ ______________ .

                       g.   Stratiform clouds can occur at low, middle, and high altitudes. They are called
                             ______________ ,_______________ , and ___________________ .

                       h.   Cumuliform clouds also occur at all three altitudes, called (low) ________(midd1e)

                             _____________ , and  (high)____________________ .
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