---
title: If the ozone layer grew much thinner, what would happen? — Wind and the air around the Earth · tree and pragmatics
description: If the ozone layer grew much thinner, what would happen? Test 3 of lesson 69 «Wind and the air around the Earth» of the world course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's choice was wrong.
---

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# Test 3 · Wind and the air around the Earth

<!-- .ven lang=en -->
If the ozone layer grew much thinner, what would happen?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **Who acts:** ozone layer · **What happens:** grow, happen

<!-- .vabout -->
This is test 3 of lesson 69 «Wind and the air around the Earth» of the world 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/world/69-wind-and-the-atmosphere/#t3).

## The question {#question}

```conllu
# sent_id = question:world:69-wind-and-the-atmosphere:t3:1
# text = If the ozone layer grew much thinner, what would happen?
1	If	if	SCONJ	IN	_	5	mark	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	ozone	ozone	NOUN	NN	Number=Sing	4	compound	_	_
4	layer	layer	NOUN	NN	Number=Sing	5	nsubj	_	_
5	grew	grow	VERB	VBD	Mood=Ind|Number=Sing|Person=3|Tense=Past|VerbForm=Fin	0	root	_	_
6	much	much	ADV	RB	_	7	advmod	_	_
7	thinner	thin	ADJ	JJR	Degree=Cmp	5	xcomp	_	SpaceAfter=No
8	,	,	PUNCT	,	_	11	punct	_	_
9	what	what	PRON	WP	PronType=Int	11	nsubj	_	_
10	would	would	AUX	MD	VerbForm=Fin	11	aux	_	_
11	happen	happen	VERB	VB	VerbForm=Inf	7	conj	_	SpaceAfter=No
12	?	?	PUNCT	.	_	5	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grow** | past | the ozone layer |  |  |  |  | thin *property* | vn appear-48.1.1 «NP V»: agent=Theme |
| 2 | **happen** | would |  |  |  |  |  |  | vn occur-48.3-1 «NP V»: agent=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 {#o1}

<!-- .ven lang=en -->
The air would have less oxygen to breathe

```conllu
# sent_id = question:world:69-wind-and-the-atmosphere:t3:o1:1
# text = The air would have less oxygen to breathe
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	air	air	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	have	have	VERB	VB	VerbForm=Inf	0	root	_	_
5	less	less	ADJ	JJR	Degree=Cmp	6	amod	_	_
6	oxygen	oxygen	NOUN	NN	Number=Sing	4	obj	_	_
7	to	to	PART	TO	_	8	mark	_	_
8	breathe	breathe	VERB	VB	VerbForm=Inf	6	acl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **have** | would | the air | less oxygen |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent oxygen=Patient |
| 2 | **breathe** | to-infinitive | the air *not said here* | less oxygen *not said here* |  |  |  |  | vn breathe-40.1.2-1 «NP V»: agent=Agent |

### Option 2 {#o2}

<!-- .ven lang=en -->
It would stop raining everywhere

```conllu
# sent_id = question:world:69-wind-and-the-atmosphere:t3:o2:1
# text = It would stop raining everywhere
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	stop	stop	VERB	VB	VerbForm=Inf	0	root	_	_
4	raining	rain	VERB	VBG	VerbForm=Ger	3	xcomp	_	_
5	everywhere	everywhere	ADV	RB	PronType=Tot	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stop** | would | It |  |  |  |  |  | vn stop-55.4-1-1 «NP V S\_ING»: agent=Affector clause=Eventuality |
| 2 | **rain** | gerund |  |  |  |  |  | everywhere *property* | vn weather-57 «It V PP.theme» |

### Option 3 · ✓ the right answer {#o3}

<!-- .ven lang=en -->
More harmful ultraviolet light would reach the ground

```conllu
# sent_id = question:world:69-wind-and-the-atmosphere:t3:o3:1
# text = More harmful ultraviolet light would reach the ground
1	More	more	ADV	RBR	Degree=Cmp	2	advmod	_	_
2	harmful	harmful	ADJ	JJ	Degree=Pos	4	amod	_	_
3	ultraviolet	ultraviolet	ADJ	JJ	Degree=Pos	4	amod	_	_
4	light	light	NOUN	NN	Number=Sing	6	nsubj	_	_
5	would	would	AUX	MD	VerbForm=Fin	6	aux	_	_
6	reach	reach	VERB	VB	VerbForm=Inf	0	root	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	ground	ground	NOUN	NN	Number=Sing	6	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **reach** | would | harmful ultraviolet light | the ground |  |  |  |  | vn body\_motion-49.2-1-1 «NP V NP ADV»: agent=Agent ground=Theme |

### Option 4 {#o4}

<!-- .ven lang=en -->
The sky would turn dark in the daytime

```conllu
# sent_id = question:world:69-wind-and-the-atmosphere:t3:o4:1
# text = The sky would turn dark in the daytime
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	sky	sky	NOUN	NN	Number=Sing	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	turn	turn	VERB	VB	VerbForm=Inf	0	root	_	_
5	dark	dark	ADJ	JJ	Degree=Pos	4	xcomp	_	_
6	in	in	ADP	IN	_	8	case	_	_
7	the	the	DET	DT	Definite=Def|PronType=Art	8	det	_	_
8	daytime	daytime	NOUN	NN	Number=Sing	4	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **turn** | would | the sky |  |  | the daytime |  | dark *property* | vn roll-51.3.1 «NP V PP.trajectory»: agent=Theme in daytime=Trajectory |

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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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