1.   A more sinister development is the seepage of nitrate into aquifers which are used as sources of the domestic water supply.

2.   Affective development is not independent of cognitive development.

3.   An interesting development is the direct synthesis of acetic anhydride, used to make cellulose acetate for photographic film base.

4.   Another advantage is that self development is capable of converting even the most boring situation into a learning opportunity.

5.   Another comparatively recent development is computer technology.

6.   As such, intellectual development is adaptive.

7.   But one worrisome development for insiders is the appearance of internal divisions.