NCERT Class 10 Science Solutions: Our Environment Question: Which of the following constitute a food-chain? A. Grass, wheat and mango B. Grass, goat and human C. Goat, cow and elephant D. Grass, fish and goat Concept in a Minute: A food chain shows the flow of energy from one living organism to another. It starts […]

NCERT Class 10 Science Solutions: Metals and Non-metals Question: An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be: A. calcium B. carbon C. silicon D. iron Concept in a Minute: The question tests the understanding of the

NCERT Class 10 Science Solutions: Magnetic Effects of Electric Current Question: Which of the following correctly describes the magnetic field near a long straight wire? A. The field consists of straight lines perpendicular to the wire B. The field consists of straight lines parallel to the wire C. The field consists of radial lines originating

NCERT Class 10 Science Solutions: Light – Reflection and Refraction Question: Which one of the following materials cannot be used to make a lens? A. Water B. Glass C. Plastic D. Clay Concept in a Minute: To form a lens, a material must be transparent and have a refractive index different from the surrounding medium

NCERT Class 10 Science Solutions: Life Processes Question: The breakdown of pyruvate to give carbon dioxide, water, and energy takes place in ______. A. cytoplasm. B. mitochondria. C. chloroplast. D. nucleus. Concept in a Minute: Cellular Respiration, specifically Aerobic Respiration. The breakdown of pyruvate is a crucial step in aerobic respiration, which releases significant amounts

NCERT Class 10 Science Solutions: How do Organisms Reproduce Question: Which of the following is not a part of the female reproductive system in human beings? A. Ovary B. Uterus C. Vas deferens D. Fallopian tube Concept in a Minute: The female reproductive system in human beings is a complex network of organs responsible for

NCERT Class 10 Science Solutions: Heredity and Evolution Question:  In evolutionary terms, we have more in common with A. a Chinese school-boy. B. a chimpanzee. C. a spider. D. a bacterium. Concept in a Minute: Evolutionary relationships are determined by common ancestry. Organisms that share a more recent common ancestor will have more in common

NCERT Class 10 Science Solutions: Electricity Question: A piece of wire of resistance R is cut into five equal parts. These parts are then connected in parallel. If the equivalent resistance of this combination is R’, then the ratio $RR’$ is ______. A. $125$ B. $15$ C. 5 D. 25 Concept in a Minute: This

NCERT Class 10 Science Solutions: Control and Coordination Question: The gap between two neurons is called a ______. A. dendrite B. synapse C. axon D. impulse Concept in a Minute: Neurons are specialized cells that transmit information in the nervous system. They communicate with each other at junctions called synapses. Explanation: A synapse is the

NCERT Class 10 Science Solutions: Chemical Reactions and Equations Question: What happens when dilute hydrochloric acid is added to iron fillings? Choose the correct answer. A. Hydrogen gas and iron chloride are produced. B. Chlorine gas and iron hydroxide are produced. C. No reaction takes place. D. Iron salt and water are produced. Concept in