--- title: Birds: feathers, nests and flight — the lesson's questions with trees and pragmatics · World description: The 17 test and exam questions of lesson 73 «Birds: feathers, nests and flight» of the world course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/) [home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / Birds: feathers, nests and flight # Birds: feathers, nests and flight The 17 questions of lesson 73 «Birds: feathers, nests and flight» of the world course of Mova's primary school with their options, 91 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/world/73-birds-feathers-nests-flight/). - [t1](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t1/) — A duck dives under the water and comes up with dry feathers underneath. Why? — wrong ✗ · ★ - [t2](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t2/) — A bird has a long, thin, curved beak. What does it most likely eat? — wrong ✗ · ★ - [t3](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t3/) — A coat filled with feathers is very warm. Which feathers are used and why? — right ✓ · ★ - [t4](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t4/) — A bird with very broad wings circles high without flapping on a sunny day. How does it stay up? — right ✓ · ★ - [t5](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t5/) — If a bird's bones were solid and heavy like ours, what would happen? — right ✓ · ★ - [t6](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t6/) — A small bird is busy feeding a chick much bigger than itself in its nest. What might explain this? — right ✓ · ★ - [t7](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t7/) — Why do paper aeroplane wings and real plane wings work a bit like a bird's wing? — wrong ✗ · ★ - [t8](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t8/) — A chicken swallows small stones. Why? — right ✓ · ★ - [t9](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t9/) — Which is true about birds and dinosaurs? — right ✓ · ★ - [t10](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t10/) — why do birds keep picking at their feathers all the time — right ✓ · ★ - [t11](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t11/) — how do birds chew if they got no teeth — right ✓ · ★ - [t12](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t12/) — Ava says birds' bones are solid and heavy so they're strong. true? — right ✓ · ★ - [t13](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/t13/) — my sister reckons birds have nothing to do with dinosaurs. right? — right ✓ · ★ - [e1](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/e1/) — Which of the following statements most accurately characterises the material of which feathers are composed? — wrong ✗ · exam - [e2](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/e2/) — Identify the principal reason for which many of a bird's bones are hollow. — wrong ✗ · exam - [e3](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/e3/) — Ascertain the manner in which a bird grinds its food in the absence of teeth. — wrong ✗ · exam - [e4](https://md.mova.elamur.ai/free/en/corpora/questions/world/73-birds-feathers-nests-flight/e4/) — Select the response that is consistent with the established facts concerning the cuckoo. — right ✓ · exam - ← previous: [72. Insects and spiders](https://md.mova.elamur.ai/free/en/corpora/questions/world/72-insects-and-spiders/) - next →: [74. Fish, frogs and reptiles](https://md.mova.elamur.ai/free/en/corpora/questions/world/74-fish-frogs-reptiles/) - ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/)