General Q&A for Class 12 · Page 29
5,215 free answers in General for Class 12 students, across CBSE, ICSE and State boards.
Question & Answer
Questions
- GeneralClass 12All
How many countries are there in Asia?
As of now cutoff date in January 2022, and there are 49 recognized countries in Asia. However, it's important to note that the number of recognized countries and political entities may change over time due to geopolitical developments, changes in government, or international recognition. To get the most up-to-date information on the number of countries in Asia, it's advisable to consult a current and reliable source, such as a government or international organization's website.
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How to increase platelets?
If you have a low platelet count, also known as thrombocytopenia, it's important to consult with a healthcare professional to determine the underlying cause and receive appropriate treatment. Increasing platelet count often depends on addressing the underlying condition. Here are some general tips that may help support healthy platelet levels: Follow your doctor's advice: First and foremost, consult with a healthcare provider to determine the cause of your low platelet count and follo
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How to get rid of a cough in 5 minutes?
Getting rid of a cough in 5 minutes is unlikely, as coughing is often a symptom of an underlying issue such as a respiratory infection, allergies, or irritation. However, there are some strategies you can try to temporarily relieve a cough or soothe your throat: Stay hydrated: Drink warm water or herbal tea with honey. Hydration can help soothe your throat and thin mucus. Honey and lemon: Mix a tablespoon of honey with a few drops of fresh lemon juice in warm water and sip it
- GeneralClass 12All
what is meant by a substance?
In chemistry, a substance is a form of matter that has a specific chemical composition and distinct properties. Substances can be elements, compounds, or mixtures of elements and compounds. Here are some key points to understand about substances: Chemical Composition: A substance has a well-defined and constant chemical composition. This means it consists of a specific arrangement of atoms or molecules. Elements, for example, are substances composed of only one type o
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what is an electric dipole moment?
An electric dipole moment is a concept in physics that describes the distribution of electric charge within a system of two equal and opposite electric charges, separated by a certain distance. It is a measure of the polarity and strength of an electric dipole, which is a fundamental concept in electromagnetism. Key points about electric dipole moments include: Two Equal and Opposite Charges: An electric dipole consists of two point charges of equal magnitude
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what does Mandela thank the international leaders for?
Nelson Mandela, the former President of South Africa and anti-apartheid icon, expressed gratitude to international leaders and the global community for their support and solidarity during the struggle against apartheid and for their contributions to the eventual dismantling of the apartheid system in South Africa. Mandela recognized the important role played by various countries, governments, organizations, and individuals in supporting the anti-apartheid movement and advocating for the end o
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What is a peptide bond?
A peptide bond is a chemical bond that forms between the amino group (NH2) of one amino acid and the carboxyl group (COOH) of another amino acid during the process of protein synthesis. Peptide bonds are covalent bonds, which means that they involve the sharing of electrons between atoms. The formation of a peptide bond occurs through a dehydration or condensation reaction, which involves the removal of a water molecule (H2O). Here's how it happens: Two amino acids are positio
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What is ball and socket joint?
A ball-and-socket joint is a type of synovial joint in the human body that allows for a wide range of motion in multiple directions. This joint is characterized by a ball-shaped head of one bone fitting into a cup-like socket of another bone, providing stability and a high degree of mobility. Ball-and-socket joints are found in several locations in the body and are known for their ability to enable movements in multiple planes. The primary example of a ball-and-socket joint in the hum
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What is the biggest festival in the world?
Determining the "biggest" festival in the world can be subjective and depends on how one measures "bigness" – it can refer to the number of participants, cultural significance, or the scale of celebrations. Several festivals are known for their massive gatherings and global recognition. Some of the biggest festivals in the world include: Kumbh Mela (India): Kumbh Mela is one of the largest religious gatherings in the world. It is a Hindu pilgrimage festival that takes place at four loca
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What is non-cooperation movement?
The Non-Cooperation Movement was a significant socio-political protest and civil disobedience campaign in India against British colonial rule. It was launched by Mahatma Gandhi, the leader of the Indian National Congress, in 1920 as part of the larger Indian independence movement. The primary objective of the Non-Cooperation Movement was to resist British authority and oppression through nonviolent means. Key features and objectives of the Non-Cooperation Movement included: Boycott of British
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What are the function of hydrochloric acid in the stomach?
Hydrochloric acid (HCl) is a strong acid produced by the stomach, primarily in the gastric glands lining the stomach's walls. It plays several important functions in the digestive process and the overall health of the gastrointestinal system. The main functions of hydrochloric acid in the stomach include: Activation of Pepsinogen: One of the key functions of HCl is to activate an enzyme called pepsinogen, which is secreted by the gastric chief cells. When HCl is released into the stom
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What is the scattering of light?
The scattering of light refers to the phenomenon where light waves interact with particles or irregularities in a medium and change their direction of propagation. This phenomenon occurs when light encounters objects or substances whose size is comparable to the wavelength of the light, leading to the scattering of light waves in various directions. Key points about the scattering of light include: Rayleigh Scattering: Rayleigh scattering is a common type of scattering that occurs when light
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what is metallurgy?
Metallurgy is a branch of science and engineering that deals with the study of metals, their properties, extraction from ores, refining, alloying, and the production of useful products from metals. It encompasses a wide range of processes and techniques used to extract and manipulate metals for various industrial and commercial applications. Key aspects of metallurgy include: Extraction of Metals: This involves the mining and processing of ores to obtain the desired metal. Ore
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What is white revolution?
The "White Revolution" is a term often used to refer to a successful dairy development program that was implemented in India in the 1970s. This program aimed to increase milk production and make India self-sufficient in milk and dairy products. The term "White Revolution" was coined to draw a parallel with the "Green Revolution," which had focused on increasing agricultural productivity and food grain production in the country. Key features and components of the White Revolution in India incl
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What is Simon commission?
The Simon Commission, formally known as the "Statutory Commission on Indian Constitutional Reform," was a commission established by the British government in 1927 to evaluate and make recommendations regarding constitutional reforms in British India. It was named after its chairman, Sir John Simon, who was a British statesman and lawyer. The main objectives of the Simon Commission were as follows: To assess the functioning of the Government of India Act of 1919 (also known as
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What is a tributary?
A tributary is a smaller river or stream that flows into a larger river, lake, or another body of water. Tributaries are an integral part of a river's hydrological system and contribute to its overall flow and drainage network. They play a crucial role in shaping the landscape and carrying water and sediment from their respective drainage basins into larger water bodies. Key characteristics of tributaries include: Flow Direction: Tributaries flow into the main river or body of
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What is the capital of Jammu and Kashmir?
The capital of the union territory of Jammu and Kashmir in India is Srinagar (summer capital) and Jammu (winter capital). This arrangement is known as the "Darbar Move" and is followed to escape extreme weather conditions in either region during different seasons. Srinagar serves as the capital during the summer months, while Jammu serves as the capital during the winter months.
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What is the full form of ATP?
ATP stands for "Adenosine Triphosphate." It is a molecule that serves as the primary energy currency in cells. ATP stores and transfers chemical energy within cells for various biochemical processes, including cellular metabolism, muscle contraction, and the active transport of molecules across cell membranes. It is often referred to as the "energy currency" of living organisms because it can readily release and transfer energy to power cellular activities.
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What are the international number system?
It seems there might be a bit of confusion in your question. If you're asking about the international standard for numbering systems, there isn't a single "international number system" per se. However, there are different numbering systems used globally for various purposes. Here are a few notable examples: Decimal Number System: This is the most common numbering system and is widely used internationally. It is a base-10 system where each digit can t
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What are the positive and normative economics?
Positive economics and normative economics are two branches of economic analysis that differ in their objectives and methodologies. Here's an overview of each: Positive Economics: Objective: Positive economics seeks to describe and explain economic phenomena as they are, without making judgments or value-based statements. It focuses on facts, data, and empirical observations. Nature: Positive economics is c