--- title: Which of the following statements most accurately characterises the… — The air we breathe · tree and pragmatics description: Which of the following statements most accurately characterises the function of the ozone layer? Exam question 2 of lesson 33 «The air we breathe» of the chemistry course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong. --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/chemistry/33-the-air-we-breathe/e2/) [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/) / [Chemistry](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/) / [The air we breathe](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/33-the-air-we-breathe/) / e2 # Exam question 2 · The air we breathe Which of the following statements most accurately characterises the function of the ozone layer? **Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** follow, characteris · **To what, where:** function This is exam question 2 of lesson 33 «The air we breathe» of the chemistry course of Mova's primary school, asked in stiff, formal language. The page gives the question's syntax tree — a dependency tree in the style of Universal Dependencies — and its pragmatics clause by clause, then the 4 options as the student saw them, each with its tree and pragmatics. Every text is parsed by Mova itself. How the student answered it, with the score of every option and why: [the test at school](https://md.mova.elamur.ai/free/en/school-run/chemistry/33-the-air-we-breathe/#e2). ## The question {#question} ```conllu # sent_id = question:chemistry:33-the-air-we-breathe:e2:1 # text = Which of the following statements most accurately characterises the function of the ozone layer? 1 Which which PRON WDT PronType=Rel 8 nsubj _ _ 2 of of ADP IN _ 5 case _ _ 3 the the DET DT Definite=Def|PronType=Art 5 det _ _ 4 following follow VERB VBG VerbForm=Ger 5 amod _ _ 5 statements statement NOUN NNS Number=Plur 8 obl _ _ 6 most most ADV RBS Degree=Sup 7 advmod _ _ 7 accurately accurately ADV RB _ 8 advmod _ _ 8 characterises characteris VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 9 the the DET DT Definite=Def|PronType=Art 10 det _ _ 10 function function NOUN NN Number=Sing 8 obj _ _ 11 of of ADP IN _ 14 case _ _ 12 the the DET DT Definite=Def|PronType=Art 14 det _ _ 13 ozone ozone NOUN NN Number=Sing 14 compound _ _ 14 layer layer NOUN NN Number=Sing 10 nmod _ SpaceAfter=No 15 ? ? PUNCT . _ 8 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **follow** | gerund | | | | | | | vn occur-48.3-1 «NP V»: agent=Theme | | 2 | **characteris** | present | | the function of the ozone layer | | | | of the following statements; accurately *property* | tree rules | One row per clause the reader finds. «not said here»: a role filled from the clause above. «roles by»: a VerbNet class and frame when one fits the verb, else the reader's rules on the tree. ## The options {#options} ### Option 1 · ← Mova's choice {#o1} It retains the oxygen within the atmosphere ```conllu # sent_id = question:chemistry:33-the-air-we-breathe:e2:o1:1 # text = It retains the oxygen within the atmosphere 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 retains retain VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 oxygen oxygen NOUN NN Number=Sing 2 obj _ _ 5 within within ADP IN _ 7 case _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 atmosphere atmosphere NOUN NN Number=Sing 2 obl _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **retain** | present | It | the oxygen | | | | within the atmosphere | tree rules | ### Option 2 {#o2} It produces the blue colour of the sky ```conllu # sent_id = question:chemistry:33-the-air-we-breathe:e2:o2:1 # text = It produces the blue colour of the sky 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 produces produce VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 5 det _ _ 4 blue blue ADJ JJ Degree=Pos 5 amod _ _ 5 colour colour NOUN NN Number=Sing 2 obj _ _ 6 of of ADP IN _ 8 case _ _ 7 the the DET DT Definite=Def|PronType=Art 8 det _ _ 8 sky sky NOUN NN Number=Sing 5 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **produce** | present | It | the blue colour of the sky | | | | | vn create-26.4 «NP V NP»: agent=Agent colour=Result | ### Option 3 · ✓ the right answer {#o3} It absorbs much of the harmful ultraviolet radiation from the Sun ```conllu # sent_id = question:chemistry:33-the-air-we-breathe:e2:o3:1 # text = It absorbs much of the harmful ultraviolet radiation from the Sun 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 absorbs absorb VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 much much ADJ JJ Degree=Pos 2 obj _ _ 4 of of ADP IN _ 8 case _ _ 5 the the DET DT Definite=Def|PronType=Art 8 det _ _ 6 harmful harmful ADJ JJ Degree=Pos 8 amod _ _ 7 ultraviolet ultraviolet ADJ JJ Degree=Pos 8 amod _ _ 8 radiation radiation NOUN NN Number=Sing 3 nmod _ _ 9 from from ADP IN _ 11 case _ _ 10 the the DET DT Definite=Def|PronType=Art 11 det _ _ 11 Sun Sun PROPN NNP Number=Sing 8 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **absorb** | present | It | much of the harmful ultraviolet radiation from the Sun | | | | | vn absorb-39.8 «NP V NP»: agent=Goal much=Theme | ### Option 4 {#o4} It supports the weight of the clouds ```conllu # sent_id = question:chemistry:33-the-air-we-breathe:e2:o4:1 # text = It supports the weight of the clouds 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 2 nsubj _ _ 2 supports support VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 0 root _ _ 3 the the DET DT Definite=Def|PronType=Art 4 det _ _ 4 weight weight NOUN NN Number=Sing 2 obj _ _ 5 of of ADP IN _ 7 case _ _ 6 the the DET DT Definite=Def|PronType=Art 7 det _ _ 7 clouds cloud NOUN NNS Number=Plur 4 nmod _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **support** | present | It | the weight of the clouds | | | | | vn admire-31.2 «NP V NP»: agent=Experiencer weight=Stimulus | **Text:** the tests of Mova's primary school, written for Mova (`world/data/school/`), as the course runner gave them to the student. **Trees:** Mova's own parse — the `en` model on the CPU, when the site is built — not checked by a teacher; they may be wrong. **Frames:** Mova's frames reader (`prag`), each text read on its own. Elamur Cosmic License. - ← previous: [The air we breathe, exam 1](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/33-the-air-we-breathe/e1/) - next →: [The air we breathe, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/33-the-air-we-breathe/e3/) - ↑ back to [The air we breathe](https://md.mova.elamur.ai/free/en/corpora/questions/chemistry/33-the-air-we-breathe/)