--- title: It is given that a submerged aquatic plant, exposed to sunlight, emi… — Plants deeper: leaves and sunlight, ho… · tree and pragmatics description: It is given that a submerged aquatic plant, exposed to sunlight, emits small bubbles. Ascertain the identity of the gas so emitted. Exam question 4 of lesson 251 «Plants deeper: leaves and sunlight, how a tree is made of air» of the biology course of Mova's primary school, with the dependency tree a --- [Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/e4/) [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/) / [Biology](https://md.mova.elamur.ai/free/en/corpora/questions/biology/) / [Plants deeper: leaves and sunlight, ho…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/) / e4 # Exam question 4 · Plants deeper: leaves and sunlight, how a tree is made of… It is given that a submerged aquatic plant, exposed to sunlight, emits small bubbles. Ascertain the identity of the gas so emitted. **Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** you · **What happens:** give, submerge, expose, emit, ascertain · **To what, where:** It, submerged aquatic plant, sunlight, small bubbles, identity, gas This is exam question 4 of lesson 251 «Plants deeper: leaves and sunlight, how a tree is made of air» of the biology 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/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/#e4). ## The question {#question} *Sentence 1:* It is given that a submerged aquatic plant, exposed to sunlight, emits small bubbles. ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:1 # text = It is given that a submerged aquatic plant, exposed to sunlight, emits small bubbles. 1 It it PRON PRP Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs 3 nsubj:pass _ _ 2 is be AUX VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 aux:pass _ _ 3 given give VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 0 root _ _ 4 that that SCONJ IN _ 8 mark _ _ 5 a a DET DT Definite=Ind|PronType=Art 8 det _ _ 6 submerged submerge VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 8 amod _ _ 7 aquatic aquatic NOUN NN Number=Sing 8 compound _ _ 8 plant plant NOUN NN Number=Sing 3 xcomp _ SpaceAfter=No 9 , , PUNCT , _ 10 punct _ _ 10 exposed expose VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 8 acl _ _ 11 to to ADP IN _ 12 case _ _ 12 sunlight sunlight NOUN NN Number=Sing 10 obl _ SpaceAfter=No 13 , , PUNCT , _ 14 punct _ _ 14 emits emit VERB VBZ Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin 3 advcl _ _ 15 small small ADJ JJ Degree=Pos 16 amod _ _ 16 bubbles bubble NOUN NNS Number=Plur 14 obj _ SpaceAfter=No 17 . . PUNCT . _ 3 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **give** | present · passive | | It | | | | | vn give-13.1-1 «NP V NP»: subject=Theme | | 2 | **submerge** | participle | | | | | | | vn other\_cos-45.4 «NP.patient V»: agent=Patient | | 3 | **expose** | participle | | a submerged aquatic plant *not said here* | sunlight | | | | vn reflexive\_appearance-48.1.2 «NP V NP PP.recipient»: agent=Agent to sunlight=Recipient | | 4 | **emit** | present | | small bubbles | | | | | vn substance\_emission-43.4 «NP V NP»: agent=Source bubble=Theme | 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. *Sentence 2:* Ascertain the identity of the gas so emitted. ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:2 # text = Ascertain the identity of the gas so emitted. 1 Ascertain ascertain VERB VB Mood=Imp|VerbForm=Fin 0 root _ _ 2 the the DET DT Definite=Def|PronType=Art 3 det _ _ 3 identity identity NOUN NN Number=Sing 1 obj _ _ 4 of of ADP IN _ 6 case _ _ 5 the the DET DT Definite=Def|PronType=Art 6 det _ _ 6 gas gas NOUN NN Number=Sing 3 nmod _ _ 7 so so ADV RB _ 8 advmod _ _ 8 emitted emit VERB VBN Tense=Past|VerbForm=Part|Voice=Pass 6 acl _ SpaceAfter=No 9 . . PUNCT . _ 1 punct _ _ ``` | # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 1 | **ascertain** | imperative | you *not said here* | the identity of the gas | | | | | vn discover-84 «NP V NP»: agent=Agent identity=Topic | | 2 | **emit** | participle | | the gas *not said here* | | | | | vn substance\_emission-43.4 «NP V NP»: agent=Source | ## The options {#options} ### Option 1 · ← Mova's choice {#o1} Water vapour ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:o1:1 # text = Water vapour 1 Water water NOUN NN Number=Sing 2 compound _ _ 2 vapour vapour NOUN NN Number=Sing 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 2 {#o2} Carbon dioxide ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:o2:1 # text = Carbon dioxide 1 Carbon carbon NOUN NN Number=Sing 2 compound _ _ 2 dioxide dioxide NOUN NN Number=Sing 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 3 · ✓ the right answer {#o3} Oxygen ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:o3:1 # text = Oxygen 1 Oxygen oxygen NOUN NN Number=Sing 0 root _ _ ``` The frames reader finds no event or fact in this sentence. ### Option 4 {#o4} Nitrogen ```conllu # sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:e4:o4:1 # text = Nitrogen 1 Nitrogen Nitrogen PROPN NNP Number=Sing 0 root _ _ ``` The frames reader finds no event or fact in this sentence. **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: [Plants deeper: leaves and sunlight, ho…, exam 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/e3/) - next →: [Plants deeper: do trees talk? Fungi, w…, test 1](https://md.mova.elamur.ai/free/en/corpora/questions/biology/252-plants-deeper-do-trees-talk-fungi-warning-smells-and-giant-clones/t1/) - ↑ back to [Plants deeper: leaves and sunlight, how a tree is made of air](https://md.mova.elamur.ai/free/en/corpora/questions/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/)