What are the system of exchange found in modern societies? In the modern economy there has been a considerable change in the system of exchange. In the field of production, the system of exchange is also connected with efficiency and skill.
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What are the different types of vascular bundles found in plants? According to relative position of xylem and phloem, the vascular bundles are classified variously.
What are the difficulties found in the calculation of national income? National income refers to the total income of the nation in a particular period of time. It is the aggregate money values of all verities of goods and services produced-during a year.
It occurs with mineral oil. Many oil wells also provide us with natural gas as by-product. Some well produce only natural gas…Natural gas is a clean fuel.
All types of small-scale industries found in India whether in manufacturing sector or service sector are divided into five types: Those units which are producing complete articles for direct consumption and also for processing industries are called as manufacturing industries.