If a container with a porous wall filled with mixture of two gases, is placed in a evacuated space, the lighter of two gases will ascape out sooner. Write the relevant equations which you use for explanations. explanations.

Fill up the blanks by selecting the correct option. (i) Biogas is a mixture of gases which predominantly contains______and is used as_______ (ii) Methanogens are commonly found in the__________during sewage treatment. (iii) ___________species are free-living fungi and effective biocontrol agents of several plant pathogens.