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Annotation of 43BSD/usr.lib/learn/morefiles/L6.1d, revision 1.1

1.1     ! root        1: #print
        !             2: How many of the lines in the files "bio*" and "chem*"
        !             3: contain the letters "the"?  Type "answer N", where
        !             4: N is the number of lines.
        !             5: #create bio1
        !             6:    Roughly speaking, your eye is made of three balls, or layers,
        !             7: fitted tightly one inside the other.  the tough white outermost
        !             8: layer's function is to protect the others.  the middle layer gives
        !             9: the front of your eye its brown, gray, or blue color.  The inside
        !            10: of this layer is dark and full of tiny blood vessels.  The innermost
        !            11: layer, called the retina, is made of very special nerve cells that
        !            12: are sensitive to light and color.  A nerve cord connects the retina
        !            13: of each eye to your brain.
        !            14:    The front of your eye's two outer layers (the cornea) is clear,
        !            15: or open, to let light enter.
        !            16: #create bio2
        !            17:    We do not know when life began on the earth, and it seems likely
        !            18: that the answer to this question will remain forever hidden from us.
        !            19: What we do know is that it was some 500 million years ago when the
        !            20: plants and animals of early geologic history had reached a stage of
        !            21: development where they produced hard parts capable of being preserved
        !            22: as fossils.
        !            23:    At this distant date there seemingly was no land life; all life
        !            24: was in the sea.  Moreover, there were no vertebrates, or backboned
        !            25: animals, living -- at least none of sufficient complexity that they
        !            26: left hard structures to be preserved in the form of fossils.
        !            27: #create chema
        !            28:    The baker said, "Now I shall put just the right amounts of water and
        !            29: yeast with the flour that is in the mixer.  Flour, water, and yeast
        !            30: together make the sponge.  Making sponge is the first step in making
        !            31: bread."
        !            32:    The baker closed the mixer.  Inside the machine, the flour and
        !            33: yeast and water went around and around until they were well mixed.
        !            34: Then the baker opened the mixer and the sponge dropped into a greased
        !            35: tub called a trough.
        !            36:    The baker pushed the trough into a warm room to let the sponge 
        !            37: rise.  It looked like dough, but it did not as yet have everything
        !            38: in it.
        !            39: #create chemb
        !            40:    Wash the blackboard.  Watch it dry.  The water goes into the air.
        !            41: When water goes into the air it evaporates.
        !            42:    Tie a damp cloth to one end of a stick.  Tie a bottle to the
        !            43: other end.  Put water in the bottle until the stick is level.  Watch
        !            44: the stick for a few minutes.  It does not stay level.
        !            45:    Water goes into the air when it evaporates.  It changes into
        !            46: water vapor.  You cannot see water vapor, but it is in the air all
        !            47: around you.
        !            48:    Cut a hold in the bottom of a cardboard box.  Hold the box
        !            49: against a cold window and blow into the hole.
        !            50: #copyin
        !            51: #user
        !            52: #uncopyin
        !            53: #match 30
        !            54: #log
        !            55: #next
        !            56: 6.1e

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