Match List-I with List-II.
| List-I (Descriptions) | List-II (Words) |
|---|---|
| (A) The study of fossil footprints, burrows and other marks left by animals that lived long ago | (I) Nidology |
| (B) The science of making and using materials and devices so small that they are measured in billionths of a metre | (II) Ichnology |
| (C) The study of how machines, living bodies and groups control themselves through feedback and the flow of information | (III) Nanotechnology |
| (D) The study of birds’ nests: how, where and with what they are built | (IV) Cybernetics |
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(II), (B)-(III), (C)-(IV), (D)-(I)
| List-I | List-II | Explanation | Example |
|---|---|---|---|
| (A) The study of fossil footprints, burrows and other marks left by animals that lived long ago | (II) Ichnology | Ichnology is the study of fossil tracks, such as footprints and burrows, left by ancient animals. | Dinosaur footprints found in a rock bed in Kutch are now being studied by experts in ichnology. |
| (B) The science of making and using materials and devices so small that they are measured in billionths of a metre | (III) Nanotechnology | Nanotechnology is the science of working with extremely tiny materials and devices. | Raghav’s project in nanotechnology uses tiny silver particles to keep water filters free of germs. |
| (C) The study of how machines, living bodies and groups control themselves through feedback and the flow of information | (IV) Cybernetics | Cybernetics is the study of how machines and living things control themselves using feedback. | A geyser that switches itself off when the water is hot works on a simple idea from cybernetics. |
| (D) The study of birds’ nests: how, where and with what they are built | (I) Nidology | Nidology is the study of birds’ nests. | For her nidology project, Ishita photographed the hanging nests of weaver birds near her village. |