Learning with suman

  Crop Production And Management Class 8 Notes Crops Plants of the same kind that are grown and cultivated as a source of food in a large cultivable land is called a crop. Types of Crops Crops, which are grown in the winter season (from October to March) are called Rabi crops. The crops, which are sown in the rainy season (from July to October) are called Kharif crops. Preparation of Soil Preparation of soil is the first step in cultivating crop for food production. The soil is prepared for sowing the seeds of the crop. This is carried out using various processes and tools. Tilting of soil The process of loosening and turning of the soil is called tilling or ploughing and is done by using a plough. Plough  A plough is a device that is used by farmers for different purposes such as adding of fertilizers, tilling and loosening of the soil. It is also used for adding fertilizers to the soil, removing weeds, scraping of soil, etc. The ploughshare is the triangular iron strip. A pl...

 Gear pump :- The gear pump is a positive displacement rotating pump which assist you to move water otherwise fluid with the help of inbuilt gears.This type of pump includes two or more gears that creat vaccume force to drive the liquid within the pump. This pump can be built with different parts like shaft , rotors and casing. These pump have high pressure are available in tiny size to supply constant liquid flow. The main benefits of using these pumps are superior like it can drive high thickness fluid , easy to use , operate and also maintain. Screw pump:- This is a positive displacement pump which can be built with several screws.  These screw are intermeshed to pressure liquids and move them within a system. The screws in the pump take the fluids and push out from another surface while growing its pressure. The construction of this pump is consistent as well as simple in making. It has three screws spindles where one screw is driver and remaining two screws are driven. Th...

  The rising average temperature of Earth's climate system, called global warming, is driving changes in rainfall patterns, extreme weather, arrivals of seasons, and more. Collectively, global warming and its effects are known as climate change. The globe is heating up. Both land and oceans are warmer now than they were when record keeping began, in 1880, and temperatures are still ticking upward. This rise in heat is global warming, in a nutshell. Here are the bare numbers,  according to the National Oceanic and Atmospheric Administration (NOAA) : Between 1880 and 1980, the global annual temperature increased at a rate of 0.13 degrees Fahrenheit (0.07 degrees Celsius) per decade, on average. Since 1981, the rate of increase has sped up, to 0.32 degrees F (0.18 degrees C) per decade. This has led to an overall 3.6 degrees F (2 degrees C) increase in global average temperature today compared to the preindustrial era. In 2019, the average global temperature over land and ocean w...

The World Health Organisation (WHO) has declared the coronavirus disease 2019 (COVID-19) a pandemic. A global coordinated effort is needed to stop the further spread of the virus. A pandemic is defined as “occurring over a wide geographic area and affecting an exceptionally high proportion of the population.”The last pandemic reported in the world was the H1N1 flu pandemic in 2009. On 31 December 2019, a cluster of cases of pneumonia of unknown cause, in the city of Wuhan, Hubei province in China, was reported to the World Health Organisation. In January 2020, a previously unknown new virus was identified, subsequently named the 2019 novel coronavirus, and samples obtained from cases and analysis of the virus’ genetics indicated that this was the cause of the outbreak. This novel coronavirus was named Coronavirus Disease 2019 (COVID-19) by WHO in February 2020.The virus is referred to as SARS-CoV-2 and the associated disease is COVID-19 . Most common symptoms:  fever dry cough...

BUSINESS:- 1. Buisness is a legally recognized organisation which provide goods or services to customers in exchange for money. eg - Tata motors , Infosys,  BHEL , Reliance etc. 2. Buisness is a commercial, industrial and professional activity undertaken by an individual or a group. eg- the purchase and sell of goods , providing services etc. 3. Buisness may refer to a particular area of economic activity,  such as the real estate business,  computer business,  poultry farming, telecommunications, shipping, tours and travels etc. Most buisness are privately owned and formed to earn profit. In other words,  the owner of business have one of their main objectives as the generation of financial returns in exchange for expending time, effort and capital. Importance of business in modern era:- Buisness, which one could refer to as economics,  is important to society because it fundamentally deals with the allocation of resources throughout the world.  These...

1.     ECONOMIC Activity : - Business is considered to be an economic activity because it is undertaken with the aim of earning money or livelihood.  2. Sale or exchange of goods or services :- Business involves transfer or exchange of goods and services for value addition . If goods are produced for self consumption and not for selling purpose , it can not be called a business activity . Cooking food at home for the family is not buisness , but cooking food and selling it to others in a restaurant is Business. Thus, one essential characteristic of business is that there should be sale or exchange of goods or services between the seller and buyer. 3. Production or procurement of goods and services:- Goods are offered to consumer after they are either produced or procured by business enterprises.  Thus , every business enterprise either manufactures the goods it deals in or it acquire them from other producers , to be further sold to consumer or users. 4. Regular dea...