Translations:Adventist Youth Honors Answer Book/Nature/Environmental Conservation/12/en
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4. Carry out a stream investigation of a small stream flowing through or near your home town. Check for the following:
a. Signs of Purity
(1) Abundance of small fish present
(2) Water visually clear and fresh smelling
(3) Stream banks covered with vegetation down to water's edge.
(4) Small amounts of green algae in water (light green in color)
(5) Some aquatic plants present, such as cattails, arrow-leaf, or pickerel weed.
(6) Turtles present in the stream
(7) Crayfish under stones in the stream
(8) Sandbars covered with growing weeds indicating relatively stable water level
