El gas O2 a20 C ocupa el volumen de 5 lt a una presión de 2 atmósferas si la temperatura parece constante que volumen ocupará a una presión de 750 torr?

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate 

Ican not answer this question since it does not have enough information

Can you write it in english