According to my knowledge this is the answer:
Rule of law is one of the most important pillar of Constitution.
Rule of Law is something which opposes common man's rule and supports Government's rule. This is actually necessary for maintaining peace and stability in democratic countries like India.
Because petsevution strengthened Christianity.
It deals with opportunity costs. Opportunity costs are not real costs, but rather the things that you had to give up in order to obtain something else. What you didn't obtain is considered to be an opportunity cost. A production possibility curve deals with this.
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A volcanic eruption produces lava, ash and gases. ... Volcanoes cause limited erosion directly; the underside of a new lava flow scours topsoil or loosely consolidated sediments. Volcanic eruptions are the indirect causes of substantial erosion through the action of volcanic debris on the atmosphere, land and water.