Is the following reaction a synthesis or a decomposition reaction? H2O (l) + CO2 (g) --> H2CO3 (l)

How much energy moves onto the next level, in an energy pyramid

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.