There is an algal bloom in a lake in a populated area. As the leading scientist for the water department, what is the most important thing to do, based on scientific evidence about such blooms? warn people about which food is safe to eat develop a strategy to prevent future algal blooms drain the lake evacuate all wildlife from the lake.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.