- Si el 70% de nuestro planeta está constituido por agua, ¿Cómo explicas la escasez de agua en algunas ciudades de nuestro país?​

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials