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AGRI-FOOD SYSTEMS

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Fertilizers: chemical substances

Fertilizers are chemical substances supplied to the crops to increase their productivity. These are used by the farmers daily to increase the crop yield. The fertilizers contain the essential nutrients required by the plants, including nitrogen, potassium, and phosphorus. They enhance the water retention capacity of the soil and also increase its fertility.

Posted by: AAP Bridge

Agriculture is the art and science of cultivating the soil, growing crops and raising livestock. It includes the preparation of plant and animal products for people to use and their distribution to markets. Agriculture provides most of the world’s food and fabrics. Cotton, wool, and leather are all agricultural products. Agriculture, with its allied sectors, is unquestionably the largest livelihood provider in India, more so in the vast rural areas. It also contributes a significant figure to the Gross Domestic Product (GDP). Sustainable agriculture, in terms of food security, rural employment, and environmentally sustainable technologies such as soil conservation, sustainable natural resource management and biodiversity protection, are essential for holistic rural development. Indian agriculture and allied activities have witnessed a green revolution, a white revolution, a yellow revolution and a blue revolution.This section provides the information on agriculture produces; machineries, research etc. Detailed information on the government policies, schemes, agriculture loans, market prices, animal husbandry, fisheries, horticulture, loans & credit, sericulture etc. is also available. Agriculture is the science, art and practice of cultivating plants and livestock. Agriculture was the key development in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that enabled people to live in cities. The history of agriculturebegan thousands of years ago. After gathering wild grains beginning at least 105,000 years ago, nascent farmers began to plant them around 11,500 years ago. Pigs, sheep, and cattle were domesticated over 10,000 years ago

Wednesday, May 19, 2021

AGRI-FOOD SYSTEMS

Health and Factors for good health

Health is a state of complete physical, mental and social well being. For a healthy life cycle, a person needs to have a balanced diet and has to regularly exercise. One must also live in a proper shelter, take enough sleep and have good hygiene habits. Health is a state of physical, mental and social well-being in which disease and infirmity are absent. Good health is central to handling stress and living a longer, more active life. In this article, we explain the meaning of good health, the types of health a person needs to consider, and how to preserve good health. Factors for good health Good health depends on a wide range of factors. Genetic factors A person is born with a variety of genes. In some people, an unusual genetic pattern or change can lead to a less-than-optimum level of health. People may inherit genes from their parents that increase their risk for certain health conditions. Environmental factors Environmental factors play a role in health. Sometimes, the environment alone is enough to impact health. Other times, an environmental trigger can cause illness in a person who has an increased genetic risk of a particular disease. Access to healthcare plays a role, but the WHO suggest that the following factors may have a more significant impact on health than this: where a person lives the state of the surrounding environment genetics their income their level of education employment status It is possible to categorize these as follows: The social and economic environment: This may include the financial status of a family or community, as well as the social culture and quality of relationships. The physical environment: This includes which germs exist in an area, as well as pollution levels. A person’s characteristics and behaviors: A person’s genetic makeup and lifestyle choices can affect their overall health. .

Wednesday, May 19, 2021

HEALTH AND NUTRITION

How Sociologists Define Culture

Culture is one of the most important concepts within sociology because sociologists recognize that it plays a crucial role in our social lives. It is important for shaping social relationships, maintaining and challenging social order, determining how we make sense of the world and our place in it, and in shaping our everyday actions and experiences in society. It is composed of both non-material and material things. In brief, sociologists define the non-material aspects of culture as the values and beliefs, language, communication, and practices that are shared in common by a group of people. Expanding on these categories, culture is made up of our knowledge, common sense, assumptions, and expectations. It is also the rules, norms, laws, and morals that govern society; the words we use as well as how we speak and write them and the symbols we use to express meaning, ideas, and concepts (like traffic signs and emojis, for example). Culture is also what we do and how we behave and perform (for example, theater and dance). It informs and is encapsulated in how we walk, sit, carry our bodies, and interact with others; how we behave depending on the place, time, and "audience;" and how we express identities of race, class, gender, and sexuality, among others. Culture also includes the collective practices we participate in, such as religious ceremonies, the celebration of secular holidays, and attending sporting events.

Tuesday, May 18, 2021

CULTURE AND SOCIETY

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In terms of security, hashing is a technique used to encrypt data and generate unpredictable hash values. It is the hash function that generates the hash code, which helps to protect the security of transmission from unauthorized users. Hash function algorithms Hashing algorithm provides a way to verify that the message received is the same as the message sent. It can take a plain text message as input and then computes a value based on that message. Key Points The length of computed value is much shorter than the original message. It is possible that different plain text messages could generate the same value. Here we will discuss a sample hashing algorithm in which we will multiply the number of a’s, e’s and h’s in the message and will then add the number of o’s to this value. For example, the message is “ the combination to the safe is two, seven, thirty-five”. The hash of this message, using our simple hashing algorithm is as follows: The hash of this message is sent to John with cipher text. After he decrypts the message, he computes its hash value using the agreed upon hashing algorithm. If the hash value sent by Bob doesn’t match the hash value of decrypted message, John will know that the message has been altered.

Tuesday, May 18, 2021

Culture is an umbrella term which encompasses the social behavior and norms found in human societies, as well as the knowledge, beliefs, arts, laws, customs, capabilities, and habits of the individuals in these groups. Humans acquire culture through the learning processes of enculturation and socialization, which is shown by the diversity of cultures across societies. Culture is a word for the 'way of life' of groups of people, meaning the way they do things. Different groups may have different cultures. A culture is passed on to the next generation by learning, whereas genetics are passed on by heredity. Culture is seen in people's writing, religion, music, clothes, cooking and in what they do.

Tuesday, May 18, 2021

CULTURE AND SOCIETY

Encryption: In cryptography, encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption is a way of scrambling data so that only authorized parties can understand the information. In technical terms, it is the process of converting human-readable plaintext to incomprehensible text, also known as ciphertext. In simpler terms, encryption takes readable data and alters it so that it appears random.

Tuesday, May 18, 2021

EDUCATION

atmosphere : dynamic, variety of factors

The atmosphere is a dynamic fluid that is continually in motion. Both its physical properties and its rate and direction of motion are influenced by a variety of factors, including solar radiation, the geographic position of continents, ocean currents, the location and orientation of mountain ranges, atmospheric chemistry, and vegetation growing on the land surface. All these factors change through time. Some factors, such as the distribution of heat within the oceans, atmospheric chemistry, and surface vegetation, change at very short timescales. Others, such as the position of continents and the location and height of mountain ranges, change over very long timescales.

Posted by: AAP Bridge

Human activity affects and Global warming, the phenomenon

Human activity affects global surface temperatures by changing Earth's radiative balance—the “give and take” between what comes in during the day and what Earth emits at night. Increases in greenhouse gases—i.e., trace gases such as carbon dioxide and methane that absorb heat energy emitted from Earth's surface and reradiate it back—generated by industry and transportation cause the atmosphere to retain more heat, which increases temperatures and alters precipitation patterns. Global warming, the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Climate scientists have since the mid-20th century gathered detailed observations of various weather phenomena (such as temperatures, precipitation, and storms) and of related influences on climate (such as ocean currents and the atmosphere’s chemical composition).

Wednesday, May 12, 2021

WATER, ENERGY, AND THE ENVIRONMENT

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Earth’s climate since the early 20th century are primarily driven by human activities, particularly fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere, raising Earth’s average surface temperature. These human-produced temperature increases are commonly referred to as global warming. Natural processes can also contribute to climate change, including internal variability (e.g., cyclical ocean patterns like El Niño, La Niña and the Pacific Decadal Oscillation) and external forcings (e.g., volcanic activity, changes in the Sun’s energy output, variations in Earth’s orbit).

Thursday, May 13, 2021

Greenhouse effect: Warming

The "greenhouse effect" is the warming that happens when certain gases in Earth's atmosphere trap heat. These gases let in light but keep heat from escaping, like the glass walls of a greenhouse, hence the name. Sunlight shines onto the Earth's surface, where the energy is absorbed and then radiate back into the atmosphere as heat. In the atmosphere, greenhouse gas molecules trap some of the heat, and the rest escapes into space. The more greenhouse gases concentrate in the atmosphere, the more heat gets locked up in the molecules.

Wednesday, May 12, 2021

WATER, ENERGY, AND THE ENVIRONMENT

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