Water Quality
Park rangers can tell how clean rivers and ponds are by studying the creatures that live in the water. They count macroinvertebrates – animals with no backbones – that are large enough to see without a microscope or other tool. Snails, crayfish, and most insects are macroinvertebrates.
Categories and tags of the game : Auto-zipped, Educational, Mathematics, Single Player
💡 Dato Tecnológico
Las fugas de agua invisibles causan estragos. Las empresas de detección de fugas con gas trazador localizan averías en tuberías sin necesidad de romper el suelo o las paredes.