General Q&A for Class 12 · Page 59
5,215 free answers in General for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
What is non-aligned movement?
The Non-Aligned Movement (NAM) is a group of states that are not formally aligned with or against any major power bloc or alliance. The movement was founded during the Cold War, with the primary goal of promoting the interests and independence of countries that were not aligned with either the Western bloc, led by the United States and its NATO allies, or the Eastern bloc, led by the Soviet Union. Key points about the Non-Aligned Movement include: Formation:</st
- GeneralClass 12All
What is agriculture class 8?
In the context of education, the term "Agriculture Class 8" typically refers to the subject or curriculum related to agriculture that is taught to students in the eighth grade or class. The content covered in an agriculture class for eighth-grade students may vary depending on the educational curriculum and the specific topics outlined by the educational board or institution. Generally, in an agriculture class for eighth grade, students may learn about the following topics:
- GeneralClass 12All
What is the focal length of a plane mirror?
The focal length of a plane mirror is considered to be infinite. In geometric optics, the focal length is the distance from the focal point to the mirror or lens. For a plane mirror, which is a flat, reflective surface, the reflected rays appear to diverge as if they are coming from a point behind the mirror. However, these rays do not actually converge or diverge to a focal point. In simpler terms, when parallel rays of light strike a plane mirror, they are reflected in such a way th
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What is the capital of Brazil?
The capital of Brazil is Brasília. Brasília was officially inaugurated as the capital on April 21, 1960, and it was designed by the Brazilian architect Oscar Niemeyer and the urban planner Lúcio Costa. Prior to the establishment of Brasília, Rio de Janeiro served as the capital of Brazil. The move to Brasília was part of an effort to promote development in the interior of the country and to create a more centralized location for the capital.
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What is the full form of HTTP?
HTTP stands for "Hypertext Transfer Protocol." It is the fundamental protocol used for transferring and receiving information on the World Wide Web. HTTP defines how messages are formatted and transmitted, and how web browsers and servers respond to different commands. When you enter a web address in your browser's address bar and press Enter, your browser sends an HTTP request to the server, which then responds by sending back the requested web page through HTTP. In a web address lik
- GeneralClass 12All
What do we get from cereals pulses fruits and vegetables?
Cereals, pulses, fruits, and vegetables are important components of a balanced and nutritious diet, providing a variety of essential nutrients that contribute to overall health and well-being. Here's what we typically get from each of these food groups: Cereals: Carbohydrates: Cereals, such as rice, wheat, oats, and corn, are rich in carbohydrates, which are the body's primary source of energy. Fiber: Whole
- GeneralClass 12All
What is the preamble of the Indian constitution?
The Preamble to the Constitution of India is a brief introductory statement that sets out the guiding principles and objectives of the constitution. It serves as a preface and provides insight into the philosophy and aspirations of the framers of the Indian Constitution. The Preamble was adopted along with the Constitution on January 26, 1950. It reads as follows: "We, the people of India, having solemnly resolved to constitute India into a sovereign socialist secular democratic repub
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What is a yo-yo test?
The yo-yo test, also known as the beep test or shuttle run test, is a fitness test designed to assess an individual's aerobic (endurance) capacity and overall cardiovascular fitness. It involves continuous running back and forth between two points, with the pace increasing at set intervals. The test is widely used in sports and fitness training, particularly in team sports like soccer, cricket, rugby, and field hockey. Here's a general description of how the yo-yo test is conducted:</
- GeneralClass 12All
What is an electric cell?
An electric cell, often referred to simply as a cell, is a device that produces electrical energy through chemical reactions. It is a source of direct current (DC) electricity and serves as the fundamental building block of batteries. Electric cells are commonly used to power various electronic devices, ranging from small gadgets like flashlights to larger applications like automobiles. The basic components of an electric cell include: Electrodes: Elect
- GeneralClass 12All
What is spore formation?
Spore formation is a method of asexual reproduction in certain organisms, particularly fungi, bacteria, and some plants. Spores are specialized reproductive cells or structures that can develop into new individuals under suitable conditions. The process of spore formation varies among different organisms, but the general idea is to produce reproductive cells capable of dispersing and giving rise to new organisms. Here are examples of spore formation in different groups of organisms:</
- GeneralClass 12All
What is the meaning of sarcasm in Hindi?
The term "sarcasm" can be translated into Hindi as "ताना" (pronounced as taana) or "व्यंग्य" (pronounced as vyāṅgya). These words are used to convey the idea of saying something but meaning the opposite, often in a mocking or humorous tone. Sarcasm involves the use of irony to mock or convey contempt, and it's a form of verbal irony where the intended meaning of a statement is different from the literal meaning. In Hindi, both "ताना" and "व्यंग्य" capture the essence of sarcasm in communicati
- GeneralClass 12All
What is afforestation?
Afforestation is the process of establishing a forest, or stand of trees, in an area where there was no forest. It involves the deliberate and planned planting of trees or the natural regeneration of forests in areas that were previously devoid of significant tree cover. Afforestation is a proactive approach to counter deforestation, improve biodiversity, mitigate climate change, and address various environmental issues. Key aspects of afforestation include: 1. Tree Planting: Afforestation of
- GeneralClass 12All
What management practices are common in dairy and poultry farming?
Management practices in dairy and poultry farming play a crucial role in ensuring the health, productivity, and overall well-being of the animals. Here are some common management practices in both dairy and poultry farming: Dairy Farming: Feeding and Nutrition: Providing a balanced and nutritious diet to meet the specific needs of each dairy cow. Monitoring feed quality and ensuring access to clean water at all time
- GeneralClass 12All
State the role of bile salts in the digestion of fats.
Bile salts play a critical and multifaceted role in fat digestion, acting as biological detergents that make lipid digestion possible. Here are their essential functions: Primary roles of bile salts: Emulsification of fats: Bile salts break down large fat globules into thousands of tiny droplets, a process called emulsification This dramatically increases the surface area of fats, making them more a
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Where is bile made and stored?
Bile production and storage involves two key organs: Bile is produced in: THE LIVER The liver continuously produces bile in specialized liver cells called hepatocytes Approximately 500-1000 ml of bile is produced daily Bile is a greenish-yellow digestive fluid composed of bile salts, bile pigments (bilirubin), cholesterol, phospholipids, water, and electrolytes Bile is stored in: THE GALLBLADD
- GeneralClass 12All
Name the enzyme present in human saliva and pancreatic juice.
Enzymes in human saliva: Salivary amylase (Ptyalin): The primary enzyme in saliva Function: Breaks down starch (complex carbohydrates) into maltose and simpler sugars Significance: Initiates carbohydrate digestion in the mouth Optimal pH: Works best at neutral pH (around 6.7-7.0) Lingual lipase (minor component): Begins lim
- GeneralClass 12All
What role do the following enzymes play in digestion?
a) Ptyalin (Salivary Amylase) (b) Lipase Lipase is a crucial enzyme that breaks down fats (lipids) into fatty acids and glycerol, facilitating fat digestion and absorption. Sources and functions: Gastric lipase: Secreted by gastric glands in the stomach; plays a minor role in fat digestion (accounts for about 10-30% of fat digestion). Pancreatic lip
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How would non-secretion of hydrochloric acid in our stomach affect food digestion?
Non-secretion of hydrochloric acid (HCl) in the stomach, a condition known as achlorhydria or hypochlorhydria, would significantly impair digestion and overall health in several ways: Major digestive impacts: Impaired protein digestion: HCl activates pepsinogen into pepsin, the primary enzyme for protein breakdown in the stomach. Without adequate HCl, protein digestion becomes inefficient, leading to malabsorption of am
- GeneralClass 12All
What do NADP and ADP stand for?
NADP - Nicotinamide Adenine Dinucleotide Phosphate Function: Acts as an electron and hydrogen carrier in photosynthesis Forms: Exists as NADP⁺ (oxidized form) and NADPH (reduced form) Role: NADPH produced during light reactions serves as a reducing agent in the Calvin cycle, providing hydrogen and high-energy electrons for CO₂ reduction to form glucose Structure: C
- GeneralClass 12All
How is digested fat absorbed in the body?
Fat absorption is a sophisticated process that primarily occurs in the small intestine, specifically in the jejunum (the middle section). The process involves several coordinated steps: Step-by-step fat absorption process: Emulsification: Bile salts from the liver emulsify large fat droplets into smaller micelles, increasing the surface area for enzymatic action. Enzymatic digestion: Pancreati