Define the precautionary principle and illustrate its usefulness with regard to the ecological issues facing society.

The Precautionary Principle is a strategy to cope with possible risks where scientific understanding is yet incomplete, such as the risks of nano technology, genetically modified organisms and systemic insecticides. A precaution is a careful action you make in advance. You might want to take theprecaution of bringing lots of water and sunblock if you're going on a desert hike.Precaution means exactly what it sounds like. The prefix pre- means before, and caution means carefulness in the face of danger.

C14 hope it your welcome

Magma is outside the volcano  and lava is inside the volcano.