" (vil) How,according to you,can peace and liberty be maintained in a state? "

Define soil fertility. How can it be maintained ?

How can menstrual hygiene be maintained during menstrual days?

The behaviour of matter in different state is governed by various physical law. According to you, what are the factors that determine the state of matter ?

The behaviour of matter in different state is governed by various physical law. According to you, what are the factors that determine the state of matter ?