| Column A | Column B |
| Q.1. Aqueous Solution | (a) A solution containing the maximum amount of solute that can be dissolved at a given temperature. |
| Q.2. Saturated Solution | (b) A solution that can still dissolve more solute at a given temperature. |
| Q.3. Unsaturated Solution | (c) Water, because it dissolves more substances than any other liquid. |
| Q.4. Universal Solvent | (d) A solution in which water acts as the dissolving medium. |
| Column A | Column B |
| 1. Aqueous Solution | (d) A solution in which water acts as the dissolving medium. |
| 2. Saturated Solution | (a) A solution containing the maximum amount of solute that can be dissolved at a given temperature. |
| 3. Unsaturated Solution | (b) A solution that can still dissolve more solute at a given temperature. |
| 4. Universal Solvent | (c) Water, because it dissolves more substances than any other liquid. |
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| Column A | Column B |
| Q.1. Mutualism | (a) Mangroves slow tsunami waves |
| Q.2. Parasitism | (b) Honeybees and flowers |
| Q.3. Decomposition | (c) Ticks on a dog |
| Q.4. Ecosystem Service | (d) Fungi breaking down dead leaves |
| Column I | Column II |
| A. Silos | 1. Fertiliser |
| B. Combines | 2. Storage of grains |
| C. Urea | 3. Sprinklets |
| D. Irrigation | 4. Harvesting and threshing |
| Column I | Column II |
| (a) Richter scale | (i) Sudden shaking of the earth |
| (b) Waves recorder | (ii) Conductor |
| (c) Earthquake | (iii) Earthing |
| (d) Copper | (iv) Intensity of earthquake |
| (v) Seismograph |
| Column I | Column II |
| A. Weedicides | 1. Cotton |
| B. Rabi season crop | 2. 2, 4-D |
| C. Kharif season crop | 3. Separating grains from chaff |
| D. Threshing | 4. Insect |
| 5. Pea |
| Column A | Column B |
| Q.1. Tree | (a) Breaks down dead matter |
| Q.2. Deer | (b) Eats insects |
| Q.3. Vulture | (c) Performs photosynthesis |
| Q.4. Frog | (d) Eats grass and leaves |
| Column A | Column B |
| Q.1. Full Moon | (a) The Moon is not visible |
| Q.2. New Moon | (b) Earth between Sun and Moon |
| Q.3. Lunar Eclipse | (c) The entire face of the Moon is visible |
| Q.4. Waxing | (d) The Moon appears to grow |
| Column A | Column B |
| (a) Kharif crops | (i) Food for cattle |
| (b) Rabi crops | (ii) Urea and super phosphate |
| (c) Chemical fertilisers | (iii) Animal excreta, cow dung urine and plant waste |
| (d) Organic manure | (iv) Wheat, gram and pea |
| (v) Paddy and maize |
| Column A | Column B |
| Q.1. Oxygen | (a) Mixture of gases |
| Q.2. Sodium Chloride (NaCl) | (b) Element |
| Q.3. Air | (c) Compound |
| Q.4. Carbon | (d) Made of Sodium Chlorine |
| Column A | Column B |
| Q.1. Solute | (a) The substance that dissolves in a solution. |
| Q.2. Solvent | (b) A solution in which water acts as the dissolving medium. |
| Q.3. Solution | (c) The substance in which a solute dissolves. |
| Q.4. Aqueous Solution | (d) A homogeneous mixture of two or more substances. |
| Column A | Column B |
| Q.1. Particulate matter | (a) Very large |
| Q.2. Matter is composed of | (b) Tiny particles suspended in the air |
| Q.3. The state of matter depends on | (c) Atoms 86 molecules |
| Q.4. Interparticle spacing in gases | (d) Temperature and Pressure |