---
title: Why does hair often get lighter in summer? — Hair: growing, curly and straight, eye… · tree and pragmatics
description: Why does hair often get lighter in summer? Test 8 · ★★ of lesson 355 «Hair: growing, curly and straight, eyebrows, eyelashes and going grey» 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 wrong.
---

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# Test 8 · ★★ · Hair: growing, curly and straight, eyebrows, eyelashes and…

<!-- .ven lang=en -->
Why does hair often get lighter in summer?

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 3 · wrong ✗ · **What happens:** get

<!-- .vabout -->
This is test 8 · ★★ of lesson 355 «Hair: growing, curly and straight, eyebrows, eyelashes and going grey» 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/355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey/#t8).

## The question {#question}

```conllu
# sent_id = question:biology:355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey:t8:1
# text = Why does hair often get lighter in summer?
1	Why	why	ADV	WRB	PronType=Int	0	root	_	_
2	does	do	AUX	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	1	advcl:relcl	_	_
3	hair	hair	NOUN	NN	Number=Sing	2	obj	_	_
4	often	often	ADV	RB	_	5	advmod	_	_
5	get	get	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	2	advcl	_	_
6	lighter	light	ADJ	JJR	Degree=Cmp	5	xcomp	_	_
7	in	in	ADP	IN	_	8	case	_	_
8	summer	summer	NOUN	NN	Number=Sing	6	obl	_	SpaceAfter=No
9	?	?	PUNCT	.	_	1	punct	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **get** | present |  |  |  |  |  | light, often *property* | vn comprehend-87.2-1 «NP V S\_ING»: agent=Experiencer |

<!-- .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 -->
New hair grows in white because of the heat

```conllu
# sent_id = question:biology:355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey:t8:o1:1
# text = New hair grows in white because of the heat
1	New	new	ADJ	JJ	Degree=Pos	2	amod	_	_
2	hair	hair	NOUN	NN	Number=Sing	3	nsubj	_	_
3	grows	grow	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	in	in	ADP	IN	_	5	case	_	_
5	white	white	ADJ	JJ	Degree=Pos	3	obl	_	_
6	because	because	ADP	IN	ExtPos=ADP	9	case	_	_
7	of	of	ADP	IN	_	6	fixed	_	_
8	the	the	DET	DT	Definite=Def|PronType=Art	9	det	_	_
9	heat	heat	NOUN	NN	Number=Sing	3	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **grow** | present | New hair |  |  | white |  | because the heat | vn appear-48.1.1 «NP V PP.location»: agent=Theme in white=Location |

### Option 2 {#o2}

<!-- .ven lang=en -->
Summer air bleaches the roots

```conllu
# sent_id = question:biology:355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey:t8:o2:1
# text = Summer air bleaches the roots
1	Summer	summer	NOUN	NN	Number=Sing	2	compound	_	_
2	air	air	NOUN	NN	Number=Sing	3	nsubj	_	_
3	bleaches	bleach	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
4	the	the	DET	DT	Definite=Def|PronType=Art	5	det	_	_
5	roots	root	NOUN	NNS	Number=Plur	3	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **bleach** | present | Summer air | the roots |  |  |  |  | vn other\_cos-45.4 «NP V NP.patient»: agent=Agent root=Patient |

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

<!-- .ven lang=en -->
Sunlight breaks down some of the melanin in the dead hair

```conllu
# sent_id = question:biology:355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey:t8:o3:1
# text = Sunlight breaks down some of the melanin in the dead hair
1	Sunlight	sunlight	NOUN	NN	Number=Sing	2	nsubj	_	_
2	breaks	break	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	down	down	ADP	RP	_	2	compound:prt	_	_
4	some	some	DET	DT	PronType=Ind	2	obj	_	_
5	of	of	ADP	IN	_	7	case	_	_
6	the	the	DET	DT	Definite=Def|PronType=Art	7	det	_	_
7	melanin	melanin	NOUN	NN	Number=Sing	4	nmod	_	_
8	in	in	ADP	IN	_	11	case	_	_
9	the	the	DET	DT	Definite=Def|PronType=Art	11	det	_	_
10	dead	dead	ADJ	JJ	Degree=Pos	11	amod	_	_
11	hair	hair	NOUN	NN	Number=Sing	2	obl	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **break down** | present | Sunlight | some |  | the dead hair |  |  | vn break-45.1 «NP V NP»: agent=Agent some=Patient |

### Option 4 {#o4}

<!-- .ven lang=en -->
Sweat dyes it lighter

```conllu
# sent_id = question:biology:355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey:t8:o4:1
# text = Sweat dyes it lighter
1	Sweat	sweat	NOUN	NN	Number=Sing	2	nsubj	_	_
2	dyes	dye	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	_	_
3	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	obj	_	_
4	lighter	light	ADJ	JJR	Degree=Cmp	2	xcomp	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **dye** | present | Sweat | it |  |  |  | light *property* | vn braid-41.2.2 «NP V NP»: agent=Agent it=Patient |

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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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- ← previous: [Hair: growing, curly and straight, eye…, test 7](https://md.mova.elamur.ai/free/en/corpora/questions/biology/355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey/t7/)
- next →: [Hair: growing, curly and straight, eye…, test 9](https://md.mova.elamur.ai/free/en/corpora/questions/biology/355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey/t9/)
- ↑ back to [Hair: growing, curly and straight, eyebrows, eyelashes and going grey](https://md.mova.elamur.ai/free/en/corpora/questions/biology/355-hair-growing-curly-and-straight-eyebrows-eyelashes-and-going-grey/)