---
title: «why's the sea blue down there, is it the sky» Which is the best ans… — The ocean: open sea, sunlit zone and t… · tree and pragmatics
description: «why's the sea blue down there, is it the sky» Which is the best answer? Test 10 · ★ of lesson 8 «The ocean: open sea, sunlit zone and the deep dark» 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 10 · ★ · The ocean: open sea, sunlit zone and the deep dark

<!-- .ven lang=en -->
«why's the sea blue down there, is it the sky» Which is the best answer?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 1 · right ✓ · **Who acts:** sea blue, blue · **What happens:** be · **To what, where:** sky, best answer · **Speech:** someone speaks here

<!-- .vabout -->
This is test 10 · ★ of lesson 8 «The ocean: open sea, sunlit zone and the deep dark» 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/8-the-ocean/#t10).

## The question {#question}

```conllu
# sent_id = question:biology:8-the-ocean:t10:1
# text = «why's the sea blue down there, is it the sky» Which is the best answer?
1	«	«	PUNCT	``	_	8	punct	_	SpaceAfter=No
2	why	why	ADV	WRB	PronType=Int	8	advmod	_	SpaceAfter=No
3	's	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	8	cop	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	6	det	_	_
5	sea	sea	NOUN	NN	Number=Sing	6	compound	_	_
6	blue	blue	NOUN	NN	Number=Sing	8	nsubj	_	_
7	down	down	ADV	RB	_	8	advmod	_	_
8	there	there	ADV	RB	PronType=Dem	0	root	_	SpaceAfter=No
9	,	,	PUNCT	,	_	13	punct	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	cop	_	_
11	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	13	nsubj	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	13	det	_	_
13	sky	sky	NOUN	NN	Number=Sing	8	obl	_	SpaceAfter=No
14	»	»	PUNCT	''	_	13	punct	_	_
15	Which	which	PRON	WDT	PronType=Rel	19	nsubj	_	_
16	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	19	cop	_	_
17	the	the	DET	DT	Definite=Def|PronType=Art	19	det	_	_
18	best	good	ADJ	JJS	Degree=Sup	19	amod	_	_
19	answer	answer	NOUN	NN	Number=Sing	8	parataxis	_	SpaceAfter=No
20	?	?	PUNCT	.	_	8	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **is** *in a quote* | present | the sea blue |  |  |  |  | down, there *property* | tree rules |
| 2 | **is a** *in a quote* | present | blue | the sky |  |  |  |  | tree rules |
| 3 | **be** *speech: assert* | present |  | the best answer |  |  |  |  | tree rules |

<!-- .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 -->
Water soaks up red light first, so blue is what is left deeper down

<!-- fold The tree, 14 words -->
```conllu
# sent_id = question:biology:8-the-ocean:t10:o1:1
# text = Water soaks up red light first, so blue is what is left deeper down
1	Water	water	NOUN	NN	Number=Sing	2	nsubj	_	_
2	soaks	soak	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	up	up	ADP	RP	_	2	compound:prt	_	_
4	red	red	ADJ	JJ	Degree=Pos	5	amod	_	_
5	light	light	NOUN	NN	Number=Sing	2	obj	_	_
6	first	first	ADV	RB	NumForm=Word|NumType=Ord	2	advmod	_	SpaceAfter=No
7	,	,	PUNCT	,	_	11	punct	_	_
8	so	so	ADV	RB	_	9	advmod	_	_
9	blue	blue	ADJ	JJ	Degree=Pos	11	amod	_	_
10	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	11	cop	_	_
11	what	what	PRON	WP	PronType=Rel	2	conj	_	_
12	is	be	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	13	aux:pass	_	_
13	left	leave	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	11	acl:relcl	_	_
14	deeper	deep	ADV	RBR	Degree=Cmp	13	advmod	_	_
15	down	down	ADV	RB	_	13	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **soak up** | present | Water | red light |  |  |  | first *property* | vn wipe\_manner-10.4.1 «NP V NP.source»: agent=Agent light=Source |
| 2 | **is a** | present | Water *not said here* |  |  |  |  |  | tree rules |
| 3 | **leave down** | present · passive |  |  |  |  |  | deep, down *property* | vn escape-51.1-1-1 «NP V» |

### Option 2 {#o2}

<!-- .ven lang=en -->
Salt makes the water blue, and the deeper you go the more salt there is

<!-- fold The tree, 15 words -->
```conllu
# sent_id = question:biology:8-the-ocean:t10:o2:1
# text = Salt makes the water blue, and the deeper you go the more salt there is
1	Salt	salt	NOUN	NN	Number=Sing	2	nsubj	_	_
2	makes	make	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
5	blue	blue	ADJ	JJ	Degree=Pos	2	xcomp	_	SpaceAfter=No
6	,	,	PUNCT	,	_	11	punct	_	_
7	and	and	CCONJ	CC	_	11	cc	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	deeper	deep	ADJ	JJR	Degree=Cmp	11	advcl	_	_
10	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	11	nsubj	_	_
11	go	go	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	conj	_	_
12	the	the	DET	DT	Definite=Def|PronType=Art	14	det	_	_
13	more	more	ADV	RBR	Degree=Cmp	14	advmod	_	_
14	salt	salt	NOUN	NN	Number=Sing	11	obj	_	_
15	there	there	PRON	EX	PronType=Dem	16	expl	_	_
16	is	be	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	14	acl:relcl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **make** | present | Salt | the water |  |  |  | blue *property* | vn build-26.1-1 «NP.asset V NP»: agent=Asset water=Product |
| 2 | **go** | present | you | the salt |  |  |  |  | vn meander-47.7 «PP.location V NP»: agent=Location salt=Theme |
| 3 | **be** | present | the salt *not said here* |  |  | there |  |  | vn exist-47.1 «NP V»: agent=Theme |

### Option 3 {#o3}

<!-- .ven lang=en -->
It reflects the sky even 20 metres down

```conllu
# sent_id = question:biology:8-the-ocean:t10:o3:1
# text = It reflects the sky even 20 metres down
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	nsubj	_	_
2	reflects	reflect	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	sky	sky	NOUN	NN	Number=Sing	2	obj	_	_
5	even	even	ADV	RB	_	6	advmod	_	_
6	20	20	NUM	CD	NumForm=Digit|NumType=Card	7	nummod	_	_
7	metres	metre	NOUN	NNS	Number=Plur	2	obj	_	_
8	down	down	ADV	RB	_	2	advmod	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **reflect** | present | It | the sky |  |  |  | down *property* | tree rules |

### Option 4 {#o4}

<!-- .ven lang=en -->
Fish paint the water blue

```conllu
# sent_id = question:biology:8-the-ocean:t10:o4:1
# text = Fish paint the water blue
1	Fish	fish	NOUN	NNS	Number=Plur	2	nsubj	_	_
2	paint	paint	VERB	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	the	the	DET	DT	Definite=Def|PronType=Art	4	det	_	_
4	water	water	NOUN	NN	Number=Sing	2	obj	_	_
5	blue	blue	ADJ	JJ	Degree=Pos	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **paint** | present | Fish | the water |  |  |  | blue *property* | vn image\_impression-25.1 «NP V NP.destination»: agent=Agent water=Destination |

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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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