Question


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| sl.no. | Symbol | Description |
| 1. | ![]() |
open key |
| 2. | ![]() |
cell |
| 3. | open |
bulb glows |
| 4. | ![]() |
battery |
| 5. | ![]() |
bulb does not glow |

| 1. | Heat | $0^o$ C |
| 2. | Temperature | $100^o$ C |
| 3. | Thermal Equilibrium | kelvin |
| 4. | Ice cube | No heat flow |
| 5. | Boiling water | joule |

| 1. | Control center | Energy producer |
| 2. | Food producer (Plant cell) | Mitochondria |
| 3. | Gate of the nucleus | Nucleus |
| 4. | Gate of the cell | Chloroplasts |
| 5. | Energy producer | Nuclear membrane |

| 1. | Soap | $C_6 H_5 OH$ |
| 2. | Cement | $CaSO_4 \cdot 2 H_2 O$ |
| 3. | Fertilizers | NaOH |
| 4. | Gypsum | RCC |
| 5. | Phenol | NPK |
| 1. | MAC OS | Free and Open-source Software |
| 2. | Software | Paid and Proprietary Software |
| 3. | Hardware | Input Device |
| 4. | Keyboard | RAM |
| 5. | LINUX | Geogebra |
| 1. | Ear | Cardiac muscle |
| 2. | Skeletal System | Flat muscle |
| 3. | Diaphragm | Sound |
| 4. | Heart | Air sacs |
| 5. | Lungs | Protection of internal organs |
| First-generation computer | Artificial Intelligence |
| Second-generation computer | Integrated Circuit |
| Third generation computer | Vacuum tubes |
| Fourth-generation computer | Transistor |
| Fifth-generation computer | Micro processor |