The correct answer is (a) P = F/A. Pressure (P) is defined as the force (F) applied per unit area (A). Mathematically, it is given by: P = F/A This means that pressure increases if force increases or area decreases.
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The correct answer is (d) glycolipids and glycoproteins. Carbohydrates in the plasma membrane are attached to lipids (glycolipids) or proteins (glycoproteins). They play a crucial role in cell recognition, signaling, and adhesion but are not present as cellulose, starch, or ...
(a) +3 and -3 respectively. Aluminium (Al) has a valency of +3 because it loses three electrons to achieve stability. Phosphate (PO₄³⁻) has a valency of -3 as it gains three electrons. They combine to form AlPO₄ in a neutral ...
The correct answer is (d) All of these. Iodine, camphor, and naphthalene all undergo sublimation, meaning they directly change from solid to gas without becoming liquid. This process occurs due to weak intermolecular forces, allowing these substances to vaporize upon ...
The correct answer is (b) Solid < Liquid < Gas. In solids, particles are tightly packed with minimal space between them. In liquids, particles have more space and can move freely. In gases, particles are far apart, allowing them to ...
The correct answer is (b) Blue colour will spread more quickly in B. In hot water (B), the higher temperature increases the kinetic energy of water molecules, speeding up the diffusion of copper sulfate. This causes the blue color to ...
NCERT Solutions for Class 9 Social Science Chapter 2 People as Resource Question 9. Page No. 27 NCERT Academic Session 2023-2024
NCERT Solutions for Class 9 Social Science Chapter 2 People as Resource Question 15. Page No. 27 NCERT Academic Session 2023-2024 Description: Capital is assets aiding wealth creation: money (financial), tools (physical), skills (human), connections (social), and nature resources (natural) vital ...
NCERT Solutions for Class 9 Social Science Chapter 2 People as Resource Question 11. Page No. 27 NCERT Academic Session 2023-2024
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