---
title: What would happen to a coast if all its mangroves were cut down? — Mangroves: trees in salt water, mudski… · tree and pragmatics
description: What would happen to a coast if all its mangroves were cut down? Test 7 · ★ of lesson 178 «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» of the biology course of Mova's primary school, with the dependency tree and pragmatics of the question and of each option; Mova's c
---

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# Test 7 · ★ · Mangroves: trees in salt water, mudskippers, archerfish an…

<!-- .ven lang=en -->
What would happen to a coast if all its mangroves were cut down?

<!-- .vintro -->
**Mova's choice:** option 3 · **The right answer:** option 3 · right ✓ · **What happens:** happen, cut down · **To what, where:** mangroves

<!-- .vabout -->
This is test 7 · ★ of lesson 178 «Mangroves: trees in salt water, mudskippers, archerfish and swimming tigers» 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/178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers/#t7).

## The question {#question}

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t7:1
# text = What would happen to a coast if all its mangroves were cut down?
1	What	what	PRON	WP	PronType=Int	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	happen	happen	VERB	VB	VerbForm=Inf	0	root	_	_
4	to	to	ADP	IN	_	6	case	_	_
5	a	a	DET	DT	Definite=Ind|PronType=Art	6	det	_	_
6	coast	coast	NOUN	NN	Number=Sing	3	obl	_	_
7	if	if	SCONJ	IN	_	12	mark	_	_
8	all	all	DET	PDT	PronType=Tot	10	det:predet	_	_
9	its	its	PRON	PRP$	Case=Gen|Gender=Neut|Number=Sing|Person=3|Poss=Yes|PronType=Prs	10	nmod:poss	_	_
10	mangroves	mangrove	NOUN	NNS	Number=Plur	12	nsubj:pass	_	_
11	were	be	AUX	VBD	Mood=Ind|Number=Plur|Person=3|Tense=Past|VerbForm=Fin	12	aux:pass	_	_
12	cut	cut	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	3	advcl	_	_
13	down	down	ADP	RP	_	12	compound:prt	_	SpaceAfter=No
14	?	?	PUNCT	.	_	3	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **happen** | would |  |  |  |  |  | to a coast | vn occur-48.3-1 «NP V»: agent=Theme |
| 2 | **cut down** *a condition, not said to happen* | past · passive |  | coast's mangroves |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: subject=Product |

<!-- .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 {#o1}

<!-- .ven lang=en -->
There would be more young fish

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t7:o1:1
# text = There would be more young fish
1	There	there	PRON	EX	PronType=Dem	3	expl	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	be	be	VERB	VB	VerbForm=Inf	0	root	_	_
4	more	more	ADJ	JJR	Degree=Cmp	6	amod	_	_
5	young	young	ADJ	JJ	Degree=Pos	6	amod	_	_
6	fish	fish	NOUN	NN	Number=Sing	3	nsubj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **be** | would | more young fish |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
The coast would be safer from storms, with no trees in the way of the sea

<!-- fold The tree, 16 words -->
```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t7:o2:1
# text = The coast would be safer from storms, with no trees in the way of the sea
1	The	the	DET	DT	Definite=Def|PronType=Art	2	det	_	_
2	coast	coast	NOUN	NN	Number=Sing	5	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	5	aux	_	_
4	be	be	AUX	VB	VerbForm=Inf	5	cop	_	_
5	safer	safe	ADJ	JJR	Degree=Cmp	0	root	_	_
6	from	from	ADP	IN	_	7	case	_	_
7	storms	storm	NOUN	NNS	Number=Plur	5	obl	_	SpaceAfter=No
8	,	,	PUNCT	,	_	11	punct	_	_
9	with	with	ADP	IN	_	11	case	_	_
10	no	no	DET	DT	PronType=Neg	11	det	_	_
11	trees	tree	NOUN	NNS	Number=Plur	5	obl	_	_
12	in	in	ADP	IN	_	14	case	_	_
13	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
14	way	way	NOUN	NN	Number=Sing	11	nmod	_	_
15	of	of	ADP	IN	_	17	case	_	_
16	the	the	DET	DT	Definite=Def|PronType=Art	17	det	_	_
17	sea	sea	NOUN	NN	Number=Sing	14	nmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** | would | the coast |  |  | storms |  | with no trees in the way of the sea; safe *property* | tree rules |

### Option 3 · ← Mova's choice · ✓ the right answer {#o3}

<!-- .ven lang=en -->
Storm waves would hit harder, and some reefs would have fewer fish

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t7:o3:1
# text = Storm waves would hit harder, and some reefs would have fewer fish
1	Storm	storm	NOUN	NN	Number=Sing	2	compound	_	_
2	waves	wave	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	would	would	AUX	MD	VerbForm=Fin	4	aux	_	_
4	hit	hit	VERB	VB	VerbForm=Inf	0	root	_	_
5	harder	hard	ADV	RBR	Degree=Cmp	4	advmod	_	SpaceAfter=No
6	,	,	PUNCT	,	_	11	punct	_	_
7	and	and	CCONJ	CC	_	11	cc	_	_
8	some	some	DET	DT	PronType=Ind	9	det	_	_
9	reefs	reef	NOUN	NNS	Number=Plur	11	nsubj	_	_
10	would	would	AUX	MD	VerbForm=Fin	11	aux	_	_
11	have	have	VERB	VB	VerbForm=Inf	4	conj	_	_
12	fewer	few	ADJ	JJR	Degree=Cmp	13	amod	_	_
13	fish	fish	NOUN	NNS	Number=Plur	11	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **hit** | would | Storm waves |  |  |  |  | hard *property* | vn contiguous\_location-47.8-1 «NP V»: agent=Theme |
| 2 | **have** | would | some reefs | fewer fish |  |  |  |  | vn birth-28.2-1 «NP V NP»: agent=Agent fish=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Nothing would change

```conllu
# sent_id = question:biology:178-mangroves-trees-in-salt-water-mudskippers-archerfish-and-swimming-tigers:t7:o4:1
# text = Nothing would change
1	Nothing	nothing	PRON	NN	Number=Sing|PronType=Neg	3	nsubj	_	_
2	would	would	AUX	MD	VerbForm=Fin	3	aux	_	_
3	change	change	VERB	VB	VerbForm=Inf	0	root	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **change** | would | Nothing |  |  |  |  |  | vn dress-41.1.1-1-1 «NP V»: agent=Agent |

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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.

<!-- /div -->

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