Vegetable oils are converted into ghee?

From which source is the list of countries emitting carbon dioxide based on carbon dioxide emissions?

Are fan boxes installed in roofs?

Where is Dachigam National Park?

All green plants and certain blue-green algae which can produce food by photosynthesis are called the_____.

What is the scientific name of Banyan Tree? 

An aquatic plant was introduced to the US to remove pollution in Indian aquatic bodies as a troublesome weed. what is its name?

Are secondary electrical devices?