Scarcity, or limited resources, is one of the most basic economic problems we face. We run into scarcity because while resources are limited, we are a society with unlimited wants. Therefore, we have to choose. We have to make trade-offs. We have to efficiently allocate resources. We have to do those things because resources are limited and cannot meet our own unlimited demands.

Without scarcity, the science of economics would not exist. Economics is the study of production, distribution, and consumption of goods and services. If society did not have to make choices about what to produce, distribute, and consume, the study of those actions would be relatively boring. Society would produce, distribute, and consume an infinite amount of everything to satisfy the unlimited wants and needs of humans. Everyone would get everything they wanted, and it would all be free. But we all know that is not the case. The decisions and trade-offs society makes due to scarcity is what economists study.

Differences between classification and tabulation are :-

Classification:
1.Its purpose is to analyse the data.
2.It is done at the initial stages of data.
3.Data is separated according to their similarities and dissimilarities.

Tabulation:
1.Its purpose is to present the data.
2.Process of tabulation starts after classification.
3.Classified data is shown in columns

The Green Revolution was a period when the productivity of global agriculture increased drastically as a result of new advances. During this time period, new chemical fertilizers and synthetic herbicides and pesticides were created. The chemical fertilizers made it possible to supply crops with extra nutrients and, therefore, increase yield. The newly developed synthetic herbicides and pesticides controlled weeds, deterred or kill insects, and prevented diseases, which also resulted in higher productivity.A method known as multiple cropping was also implemented during the Green Revolution and lead to higher productivity.

Tillers are the people who work on the given peice of land by the owner.At time of independence, tillers were given a peice of land by owners. The owners were crop sharing not cost sharing.

• Demand curve looks at the consumer’s side for buying goods and services, and the supply curve looks at the producer’s side for selling goods and services.
• The demand curve will slope downwards from left to right since it shows an inverse relationship between price and quantity demanded.
• The supply curve slopes upward from left to right, as it shows the direct relationship between price and quantity.

Agriculture is the most important sector of Indian Economy.
 Indian agriculture sector accounts for 18 per cent of India's gross domestic product (GDP) and provides employment to 50% of the countries workforce. India is the world’s largest producer of pulses, rice, wheat, spices and spice products.India has emerged as the second largest producer of fruits and vegetables in the world [1]. According to the data provided by Department of Economics and Statics (DES) the production of food grains for the year 2013-2014 is 264 million tons which are increased when compared to (2012-2013) 257million tons. This is a good symptom of the Indian economy from the agriculture sector.
 India remains among main three as far as production of different agricultural things like paddy, wheat, pulses, groundnut, rapeseeds, natural products, vegetables, sugarcane, tea, jute, cotton, tobacco leaves and so on. 
Indian is an agriculture based country, where more than 50% of the population depends on agriculture. This structures the main source of income. The commitment of agribusiness in the national income in India is all the more, subsequently, it is said that agriculture in India is a backbone of Indian Economy.The contribution of agriculture in the initial two decades towards the total national output is between 48% and 60%. 

Email is just one of the types of electronic communication available to us.

In a work place, communication is extremely important. Employees are now luckily able to make use of the many advantages of email.

1. It is very easy to communicate effectively with anybody within the office or anywhere in the world regardless of where they are situated. 
2. Another advantage of having business email communication at work is that you can respond to clients quickly and easily. This means that you no longer need to spend hours on the phone, trying to get through and leaving messages with receptionists.
3. Messages can be sent quickly, in an instant.

The many advantages of using email.

• Spam emails can be sent which can clutter your inbox.
• Email hoaxes.
• Viruses can be sent by email.
• Misunderstandings can occur if messages are not constructed properly.