---
title: Why must zoos keep corroboree frogs in very clean rooms? — Zoos in Australia and around the world… · tree and pragmatics
description: Why must zoos keep corroboree frogs in very clean rooms? Test 4 · ★★★ of lesson 117 «Zoos in Australia and around the world, and the year's myths put right» 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 r
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/biology/117-zoos-around-the-world-and-myths-put-right/t4/)

<!-- crumbs -->
[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/) / [Zoos in Australia and around the world…](https://md.mova.elamur.ai/free/en/corpora/questions/biology/117-zoos-around-the-world-and-myths-put-right/) / t4

# Test 4 · ★★★ · Zoos in Australia and around the world, and the year's myt…

<!-- .ven lang=en -->
Why must zoos keep corroboree frogs in very clean rooms?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** zoos · **What happens:** keep · **To what, where:** corroboree frogs, clean rooms

<!-- .vabout -->
This is test 4 · ★★★ of lesson 117 «Zoos in Australia and around the world, and the year's myths put right» 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/117-zoos-around-the-world-and-myths-put-right/#t4).

## The question {#question}

```conllu
# sent_id = question:biology:117-zoos-around-the-world-and-myths-put-right:t4:1
# text = Why must zoos keep corroboree frogs in very clean rooms?
1	Why	why	ADV	WRB	PronType=Int	4	advmod	_	_
2	must	must	AUX	MD	VerbForm=Fin	4	aux	_	_
3	zoos	zoo	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	keep	keep	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
5	corroboree	corroboree	NOUN	NN	Number=Sing	6	compound	_	_
6	frogs	frog	NOUN	NNS	Number=Plur	4	obj	_	_
7	in	in	ADP	IN	_	10	case	_	_
8	very	very	ADV	RB	_	9	advmod	_	_
9	clean	clean	ADJ	JJ	Degree=Pos	10	amod	_	_
10	rooms	room	NOUN	NNS	Number=Plur	4	obl	_	SpaceAfter=No
11	?	?	PUNCT	.	_	4	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **keep** | must | zoos | corroboree frogs |  | clean rooms |  |  | vn keep-15.2 «NP V NP PP.location»: agent=Agent frog=Theme in room=Location |

<!-- .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 -->
So the chytrid fungus cannot reach them

```conllu
# sent_id = question:biology:117-zoos-around-the-world-and-myths-put-right:t4:o1:1
# text = So the chytrid fungus cannot reach them
1	So	so	ADV	RB	_	7	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
3	chytrid	chytrid	NOUN	NN	Number=Sing	4	compound	_	_
4	fungus	fungus	NOUN	NN	Number=Sing	7	nsubj	_	_
5	can	can	AUX	MD	VerbForm=Fin	7	aux	_	SpaceAfter=No
6	not	not	PART	RB	Polarity=Neg	7	advmod	_	_
7	reach	reach	VERB	VB	VerbForm=Inf	0	root	_	_
8	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	7	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **not** **reach** | can | the chytrid fungus | them *= they* |  |  |  |  | vn body\_motion-49.2-1-1 «NP V NP ADV»: agent=Agent they=Theme |

### Option 2 {#o2}

<!-- .ven lang=en -->
So the frogs stay small

```conllu
# sent_id = question:biology:117-zoos-around-the-world-and-myths-put-right:t4:o2:1
# text = So the frogs stay small
1	So	so	ADV	RB	_	4	advmod	_	_
2	the	the	DET	DT	Definite=Def|PronType=Art	3	det	_	_
3	frogs	frog	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	stay	stay	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
5	small	small	ADJ	JJ	Degree=Pos	4	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **stay** | present | the frogs |  |  |  |  | small *property* | vn exist-47.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
So visitors can see them better

```conllu
# sent_id = question:biology:117-zoos-around-the-world-and-myths-put-right:t4:o3:1
# text = So visitors can see them better
1	So	so	ADV	RB	_	4	advmod	_	_
2	visitors	visitor	NOUN	NNS	Number=Plur	4	nsubj	_	_
3	can	can	AUX	MD	VerbForm=Fin	4	aux	_	_
4	see	see	VERB	VB	VerbForm=Inf	0	root	_	_
5	them	they	PRON	PRP	Case=Acc|Number=Plur|Person=3|PronType=Prs	4	obj	_	_
6	better	well	ADV	RBR	Degree=Cmp	4	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **see** | can | visitors | them *= they* |  |  |  | well *property* | vn comprehend-87.2-1-1 «NP V NP»: agent=Experiencer they=Stimulus |

### Option 4 {#o4}

<!-- .ven lang=en -->
Because frogs dislike all water

```conllu
# sent_id = question:biology:117-zoos-around-the-world-and-myths-put-right:t4:o4:1
# text = Because frogs dislike all water
1	Because	because	SCONJ	IN	_	3	mark	_	_
2	frogs	frog	NOUN	NNS	Number=Plur	3	nsubj	_	_
3	dislike	dislike	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	all	all	DET	DT	PronType=Tot	5	det	_	_
5	water	water	NOUN	NN	Number=Sing	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dislike** | present | frogs | all water |  |  |  |  | vn admire-31.2-1 «NP V NP»: agent=Experiencer water=Stimulus |

<!-- div src -->

**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 -->

<!-- pn -->
- ← previous: [Zoos in Australia and around the world…, test 3](https://md.mova.elamur.ai/free/en/corpora/questions/biology/117-zoos-around-the-world-and-myths-put-right/t3/)
- next →: [Zoos in Australia and around the world…, test 5](https://md.mova.elamur.ai/free/en/corpora/questions/biology/117-zoos-around-the-world-and-myths-put-right/t5/)
- ↑ back to [Zoos in Australia and around the world, and the year's myths put right](https://md.mova.elamur.ai/free/en/corpora/questions/biology/117-zoos-around-the-world-and-myths-put-right/)