Acid rain is becoming more and more of a for our world. Outside of industrial pollutants, like nitrogenous and sulfuric oxides, even excess carbon dioxide can affect the pH of rainwater. One question ...
Plant: living being with cellulose walls, and often chlorophyll and starch; it has neither a mouth nor a nervous system; its mobility and sensitivity are weaker than those of animals. See more
Plant - ...
Leaf: chlorophyll containing outgrowth of a stem or branch; the site of photosynthesis. See more
Leaf - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
Bulb: underground bulb of a tulip. See more
Bulb - Visual Dictionary - Copyright © 2005-2016 - All rights reserved.
ToolboX es un entorno de programación simplificado desarrollado con Inteligencia Artificial que permite analizar el progreso de los estudiantes. El profesor sólo selecciona tareas de su ...