---
title: Which is true about the oxygen you breathe? — Plants deeper: leaves and sunlight, ho… · tree and pragmatics
description: Which is true about the oxygen you breathe? Test 7 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 and pragmatics of the question and of each option; Mova's choice was right.
---

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# Test 7 · Plants deeper: leaves and sunlight, how a tree is made of…

<!-- .ven lang=en -->
Which is true about the oxygen you breathe?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** you · **What happens:** be, breathe · **To what, where:** oxygen

<!-- .vabout -->
This is test 7 of lesson 251 «Plants deeper: leaves and sunlight, how a tree is made of air» of the biology course of Mova's primary school. 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/#t7).

## The question {#question}

```conllu
# sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:t7:1
# text = Which is true about the oxygen you breathe?
1	Which	which	PRON	WDT	PronType=Rel	3	nsubj	_	_
2	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	cop	_	_
3	true	true	ADJ	JJ	Degree=Pos	0	root	_	_
4	about	about	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	oxygen	oxygen	NOUN	NN	Number=Sing	3	obl	_	_
7	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	8	nsubj	_	_
8	breathe	breathe	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	6	acl:relcl	_	SpaceAfter=No
9	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | present |  |  |  |  |  | about the oxygen; true *property* | tree rules |
| 2 | **breathe** | present | you | the oxygen *not said here* |  |  |  |  | vn breathe-40.1.2-1 «NP V NP»: agent=Agent oxygen=Theme |

<!-- .note -->
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 · ✓ the right answer {#o1}

<!-- .ven lang=en -->
It was given off by plants and algae as a leftover of making food

```conllu
# sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:t7:o1:1
# text = It was given off by plants and algae as a leftover of making food
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj:pass	_	_
2	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	3	aux:pass	_	_
3	given	give	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	off	off	ADP	RP	_	3	compound:prt	_	_
5	by	by	ADP	IN	_	6	case	_	_
6	plants	plant	NOUN	NNS	Number=Plur	3	obl	_	_
7	and	and	CCONJ	CC	_	8	cc	_	_
8	algae	alga	NOUN	NNS	Number=Plur	6	conj	_	_
9	as	as	ADP	IN	_	11	case	_	_
10	a	a	DET	DT	Definite=Ind|PronType=Art	11	det	_	_
11	leftover	leftover	NOUN	NN	Number=Sing	3	obl	_	_
12	of	of	SCONJ	IN	_	13	mark	_	_
13	making	make	VERB	VBG	VerbForm=Ger	11	acl	_	_
14	food	food	NOUN	NN	Number=Sing	13	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **give off** | past · passive | plants and algae | It |  |  |  | as a leftover | vn substance\_emission-43.4 «NP V NP»: agent=Source subject=Theme |
| 2 | **make** | gerund | a leftover *not said here* | food |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset food=Product |

### Option 2 {#o2}

<!-- .ven lang=en -->
It is made by clouds when it rains

```conllu
# sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:t7:o2:1
# text = It is made by clouds when it rains
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	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	0	root	_	_
4	by	by	ADP	IN	_	5	case	_	_
5	clouds	cloud	NOUN	NNS	Number=Plur	3	obl	_	_
6	when	when	SCONJ	WRB	_	8	mark	_	_
7	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	8	nsubj	_	_
8	rains	rain	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	3	advcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present · passive | clouds | It |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset subject=Product |
| 2 | **rain** | present | it |  |  |  |  |  | vn weather-57 «It V PP.theme» |

### Option 3 {#o3}

<!-- .ven lang=en -->
It was always in the air since the Earth began and is never made by anything

<!-- fold The tree, 16 words -->
```conllu
# sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:t7:o3:1
# text = It was always in the air since the Earth began and is never made by anything
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	6	nsubj	_	_
2	was	be	AUX	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	cop	_	_
3	always	always	ADV	RB	PronType=Tot	6	advmod	_	_
4	in	in	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	air	air	NOUN	NN	Number=Sing	0	root	_	_
7	since	since	SCONJ	IN	_	10	mark	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	Earth	Earth	PROPN	NNP	Number=Sing	10	nsubj	_	_
10	began	begin	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	6	advcl	_	_
11	and	and	CCONJ	CC	_	14	cc	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	aux:pass	_	_
13	never	never	ADV	RB	PronType=Neg	14	advmod	_	_
14	made	make	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	10	conj	_	_
15	by	by	ADP	IN	_	16	case	_	_
16	anything	anything	PRON	NN	Number=Sing|PronType=Ind	14	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | past | It |  |  | the air |  | always *property* | tree rules |
| 2 | **begin** | past | the Earth |  |  |  |  |  | vn begin-55.1-1-1 «NP.eventuality V»: agent=Eventuality |
| 3 | **not** **make** | present · passive | the Earth *not said here* |  |  |  |  | by anything | vn build-26.1-1 «NP.asset V NP» |

### Option 4 {#o4}

<!-- .ven lang=en -->
It comes out of the ground from volcanoes

```conllu
# sent_id = question:biology:251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air:t7:o4:1
# text = It comes out of the ground from volcanoes
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	comes	come	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	out	out	ADP	IN	_	6	case	_	_
4	of	of	ADP	IN	_	6	case	_	_
5	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
6	ground	ground	NOUN	NN	Number=Sing	2	obl	_	_
7	from	from	ADP	IN	_	8	case	_	_
8	volcanoes	volcano	NOUN	NNS	Number=Plur	6	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **come out** | present | It | the ground from volcanoes |  |  |  |  | vn become-109.1 «NP V ADJ»: agent=Patient ground=Result |

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**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.

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- ↑ 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/)