Q. While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid? Top Answer Solution:When an acid is mixed with water, there is an evolution of a large amount…
Q. Why does dry HCl gas not change the colour of the dry litmus paper? Top Answer Solution:Dry HCl gas does not generate H+ ions and hence does not change the colour of dry litmus paper. Related Links
Q. Why should curd and sour substances not be kept in brass and copper vessels? Top Answer Solution:Curd and sour substances not be kept in brass and copper vessels because curd and sour substances contain acids that react with brass…
Q. What are the several types of physical changes? Melting, Freezing, Evaporation, Condensation, Sublimation, Deposition. Top Answer Solution:Change in State (Phase Change) Related Links
Q. What is the Big Bang Theory? Top Answer Solution:The Big Bang Theory explains how the universe began. The Big Bang Theory says the universe started about 13.8 billion years ago from a very small, hot, and dense point. Then it…
Q. What is an ecosystem? Top Answer Solution:An ecosystem is a community of living things (like plants, animals, and microorganisms) and non-living things (like water, air, and soil) that interact with each other in a specific area. It’s like nature’s…
Q. What are the differences between an atom and a molecule? Top Answer Atom Molecule An atom is the smallest unit of an element. It cannot be broken down further while keeping its chemical properties. A molecule is formed when…
Q. What is cloning? Top Answer Solution:Cloning is the process of creating an exact copy of a living thing. The copy, called a clone, has the same genetic material (DNA) as the original. Cloning can happen naturally or be done…
Q. What is a magnet? Top Answer Solution:A magnet is an object that can attract certain materials, like iron, nickel, and cobalt. It produces a magnetic field, which is an invisible force that pulls objects toward it. Magnets are used…
Q. What is the greenhouse effect? Top Answer Solution:The greenhouse effect is a natural process that keeps the Earth warm enough for us to live. It happens when certain gases in the atmosphere, called greenhouse gases, trap heat from the…
Q. What is refraction? Top Answer Solution:Refraction is the bending of light when it moves from one material to another. This happens because light changes its speed as it passes through different materials. Each material, like air, water, or glass,…
Q. What are acids and bases? Top Answer Solution:An acid is a substance that tastes sour (like lemon juice), can turn blue litmus paper red, and reacts with some metals to produce bubbles (hydrogen gas). Acids release hydrogen ions (H⁺)…
Q. What is the periodic table? Top Answer Solution:The periodic table is a chart that shows all the chemical elements in an organized way. It is arranged based on atomic number, which tells how many protons an atom has. For example,…
Q. What is a chemical reaction? Top Answer Solution:A chemical reaction happens when two or more substances combine and change into something new. For example, when vinegar and baking soda are mixed, they react to form carbon dioxide bubbles. Another example…
Q. What is the difference between renewable and non-renewable energy? Top Answer Solution:Renewable energy: It comes from natural sources like the sun, wind, and water, which never run out. For example, solar panels use sunlight to produce electricity. Non-renewable energy:…
Q. What is an electric current? Top Answer Solution:Electric current is the flow of tiny particles called electrons through a conductor like a wire. It is similar to water flowing in a pipe. Just as water moves to carry energy,…
Q. What is Ohm’s Law? Top Answer Solution:Ohm’s Law explains the relationship between voltage, current, and resistance in an electric circuit. If you increase the voltage in a circuit, the current will increase too, but if resistance is high, the current…
Q. Why is the sky blue? Top Answer Solution:The sky appears blue because sunlight has many colors, and blue light has the shortest wavelength. When sunlight hits the atmosphere, blue light scatters in all directions by air molecules. That is…
Q. What is the difference between mitosis and meiosis? Top Answer Mitosis Meiosis A type of cell division where one cell splits into two identical cells. It happens in body cells for growth or to heal wounds. For example, your…
Q. What is the human digestive system? Top Answer Solution:The digestive system is a group of organs that break down food into smaller parts so the body can use it for energy and growth. How the digestive system works?1. Mouth:…
Q. What are Newton’s three laws of motion? Top Answer Solution:First Law: A thing at rest stays at rest, and a thing in motion stays in motion unless an external force acts on it. For example, a ball on the ground…
Q. What is photosynthesis? Top Answer Solution:Photosynthesis is the process by which green plants make their own food. They use sunlight, carbon dioxide (CO₂) from the air, and water (H₂O) from the soil to produce glucose (a type of sugar)…
Q. What is the role of infrastructure in development? Top Answer Solution:Infrastructure includes things like roads, bridges, railways, electricity, water supply, telecommunications, and hospitals. These services are essential for people to live comfortably and businesses to operate efficiently. Infrastructure plays…
Q. What is a Self-Help Group (SHG)? Top Answer Solution:A Self-Help Group (SHG) is a small group of people, usually women, who come together to help each other. The members of the group save a small amount of money regularly,…
Q. What is credit? Top Answer Solution:Credit is the ability to borrow money or access goods and services with the promise to pay later. It allows people to buy things they may not have enough money for at the moment…
Q. What is an MNC (Multinational Corporation)? Top Answer Solution:A Multinational Corporation (MNC) is a company that operates in more than one country. These companies usually have their main offices in one country, called the home country, but they set…
Q. What is the role of technology in development? Top Answer Solution:Technology plays a key role in development by improving efficiency, creating new opportunities, and solving problems. It helps in various areas like agriculture, education, health, and industry. In agriculture,…
Q. What is the difference between formal and informal sectors? Top Answer Solution:The formal sector and informal sector are two parts of the economy, and they differ in several ways: Formal Sector: This includes businesses and jobs that are legally…
Q. What is the importance of industries in economic growth? Top Answer Solution:Industries are very important for economic growth because they help a country produce goods and services that people need and want. When industries grow, they create jobs for…
Q. What are the primary, secondary, and tertiary sectors? Top Answer Solution:The economy is divided into three sectors: primary, secondary, and tertiary.in the market, changes in the economy, or people not having the right skills for available jobs. Primary Sector:…
Q. What is unemployment? Top Answer Solution:Unemployment is when people who are able and willing to work cannot find a job. This can happen for many reasons, such as a lack of jobs in the market, changes in the economy,…
Q. What is poverty alleviation? Top Answer Solution:Poverty alleviation means efforts and actions taken to reduce or eliminate poverty. The goal is to help people who are poor by improving their living conditions and providing opportunities for a better life.…
Q. What is globalization? Top Answer Solution:Globalization is the process of countries and people becoming connected through trade, technology, and communication. It allows businesses to sell products in other countries and people to share ideas and information worldwide. It involves…
Q. What is the role of government in development? Top Answer Solution:The government plays a crucial role in the development of a country by planning and implementing policies that improve the lives of people and the overall economy. It provides…
Q. What is the difference between income and wealth? Top Answer Solution:Income refers to the money a person or household earns over a period of time, such as monthly or yearly. It includes wages from jobs, profits from businesses, rent…
Q. What is the importance of education in development? Top Answer Solution:Education is very important for development because it helps people gain skills, find good jobs, and improve their quality of life. It also helps build a better future for…
Q. What is poverty? Top Answer Solution:Poverty is when people don’t have enough money to meet their basic needs like food, clothing, and shelter. It affects a person’s ability to live a healthy and happy life.Poverty can happen because of…
Q. What are public facilities? Top Answer Solution:Public facilities are basic services provided by the government to help people live better lives such as schools, hospitals, and clean water. These facilities are for everyone to use, no matter how rich…
Q. What is sustainable development? Top Answer Solution:Sustainable development is using resources in a way that doesn’t harm the environment and ensures future generations can use them too.It focuses on balancing economic growth, protecting the environment, and ensuring social fairness.…
Q. What is the difference between developed and developing countries? Top Answer Solution:Developed countries have high incomes, good education, and healthcare (like the USA and Japan). Developing countries have lower incomes and less access to good education and healthcare (like…
Q. What is the Human Development Index (HDI)? Top Answer Solution:The Human Development Index (HDI) is a way to measure how developed a country is. It looks at three things:* Life expectancy (how long people live)* Education (how many people…
Q. What is development? Top Answer Solution:Development refers to the process of improving the economic, social, and environmental well-being of people in a country or region. It involves making progress in areas like education, health, living standards, and the economy…
Q. What is industrialization? Top Answer Solution:Industrialization means building factories and starting industries to make things in large amounts. This creates more jobs, helps cities grow, and improves the economy. This process brings many changes to society. It creates more…
Q. What was the aim of the Non-Cooperation Movement? Top Answer Solution:The Non-Cooperation Movement was started by Mahatma Gandhi in 1920 to fight against British rule in India in a peaceful way. The Non-Cooperation Movement had three main goals:** Swaraj…
Q. What is imperialism? Top Answer Solution:Imperialism is when a country takes control of another country or region, usually by force in order to expand its power and influence. This can happen through wars, politics, or control over trade and…
Q. Why was the printing press important? Top Answer Solution:The printing press was important because it changed how information was shared. Before it was invented, books and writings had to be copied by hand, which took a lot of time…
Q. What caused the French Revolution? Top Answer Solution:The French Revolution was caused by several problems: Social inequality: French society was divided into three estates. The common people were heavily taxed, while the clergy and nobility had privileges and paid…
Q. What was the Salt March? Top Answer Solution:The Salt March was a protest against the salt tax imposed by the British in India. The British made salt expensive by placing a heavy tax on it, which made it difficult…
Q. What was the Rowlatt Act? Top Answer Solution:The Rowlatt Act was a law passed by the British government in 1919 in India. It allowed the British to arrest and jail anyone without a trial if they were suspected of…
Q. What is the Civil Rights Movement? Top Answer Solution:The Civil Rights Movement in India was a fight to ensure equality and justice for all citizens, especially for marginalised groups like Dalits, tribal communities, and women. It focused on ending…
Q. What is nationalism? Top Answer Solution:Nationalism means a strong feeling of love, pride, and loyalty for your country. It makes people feel they belong to their country and work for its freedom or unity. Example to Understand:If people in…
Q. What was the Treaty of Versailles? Top Answer Solution:The Treaty of Versailles was an important agreement signed on June 28, 1919, to officially end World War I.It was created by the Allied Powers (Britain, France, the United States, and…
Q. Why did Lencho write a letter to God? Top Answer Solution:Lencho was a hardworking, humble farmer. He had sown a field of corn and was waiting for rain. He was so happy when the rain started. He was expecting…
Q. What was the only hope of Lencho? Top Answer Solution:Lencho’s only hope was to get help from God. Related Links
Q. Where was Lencho’s house located? Top Answer Solution:Lencho’s house was located at the crest of a low hill. Related Links
Q. Why did Lencho say the raindrops were like “new coins’? Top Answer Solution:The crops of Lencho’s field were ready to be harvested. And raindrops will help him to get a good return. So when it rained, he saw it…
Q. What made Lencho angry? Top Answer Solution:While counting money, he found only seventy pesos. But he demanded a hundred pesos. He was sure of his belief in God that he could neither make a mistake nor deny him what…
Q. What is the theme of story A Letter to God? Top Answer Solution:This story signifies three points. Firstly, it shows the strong confidence and believe of Lencho in god.Secondly, we can understand the innocence level of the Farmer Lencho.Thirdly,…
Q. Who is the Poet of A letter to god Top Answer Solution:Gregorio Lopez Fuentes ( G.L Fuentes) is the writter of A letter to god. 1. G.L. Fuentes) was a Mexican writer.2. He was born on 17th November 1897.…
Q. What is the full form of MRP? a) Minimum retail price b) Minimum rebate price c) Maximum rebate price d) Maximum retail price Top Answer Related Links
Q. Which logo is used for the standardization of agricultural products? a) Agmark b) Hallmark c) Amark d) None of these Top Answer Related Links
