---
title: what do plants need to make food — How plants make their food · tree and pragmatics
description: what do plants need to make food Test 10 · ★ of lesson 22 «How plants make their food» 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 10 · ★ · How plants make their food

<!-- .ven lang=en -->
what do plants need to make food

<!-- .vintro -->
**Mova's choice:** option 1 · **The right answer:** option 2 · wrong ✗ · **Who acts:** plants · **What happens:** need, make · **To what, where:** food

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This is test 10 · ★ of lesson 22 «How plants make their food» 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/22-photosynthesis/#t10).

## The question {#question}

```conllu
# sent_id = question:world:22-photosynthesis:t10:1
# text = what do plants need to make food
1	what	what	PRON	WP	PronType=Int	4	obj	_	_
2	do	do	AUX	VBP	Mood=Ind|Number=Plur|Person=3|Tense=Pres|VerbForm=Fin	4	aux	_	_
3	plants	plant	NOUN	NNS	Number=Plur	4	nsubj	_	_
4	need	need	VERB	VBP	Mood=Ind|Number=Sing|Person=1|Tense=Pres|VerbForm=Fin	0	root	_	_
5	to	to	PART	TO	_	6	mark	_	_
6	make	make	VERB	VB	VerbForm=Inf	4	xcomp	_	_
7	food	food	NOUN	NN	Number=Sing	6	obj	_	_
```

<!-- .fr -->
| # | verb | tense, mood | who | what, whom | to whom | where | when | other | roles by |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | **need** | present · do-support | plants |  |  |  |  |  | tree rules |
| 2 | **make** *not said to happen* | to-infinitive | plants *not said here* | food |  |  |  |  | vn build-26.1-1 «NP.asset V NP»: agent=Asset food=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 · ← Mova's choice {#o1}

<!-- .ven lang=en -->
Soil, water and oxygen

```conllu
# sent_id = question:world:22-photosynthesis:t10:o1:1
# text = Soil, water and oxygen
1	Soil	soil	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	water	water	NOUN	NN	Number=Sing	1	conj	_	_
4	and	and	CCONJ	CC	_	5	cc	_	_
5	oxygen	oxygen	NOUN	NN	Number=Sing	1	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 2 · ✓ the right answer {#o2}

<!-- .ven lang=en -->
Light, water and carbon dioxide

```conllu
# sent_id = question:world:22-photosynthesis:t10:o2:1
# text = Light, water and carbon dioxide
1	Light	light	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	water	water	NOUN	NN	Number=Sing	1	conj	_	_
4	and	and	CCONJ	CC	_	6	cc	_	_
5	carbon	carbon	NOUN	NN	Number=Sing	6	compound	_	_
6	dioxide	dioxide	NOUN	NN	Number=Sing	1	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 3 {#o3}

<!-- .ven lang=en -->
Only water and soil

```conllu
# sent_id = question:world:22-photosynthesis:t10:o3:1
# text = Only water and soil
1	Only	only	ADV	RB	_	2	advmod	_	_
2	water	water	NOUN	NN	Number=Sing	0	root	_	_
3	and	and	CCONJ	CC	_	4	cc	_	_
4	soil	soil	NOUN	NN	Number=Sing	2	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

### Option 4 {#o4}

<!-- .ven lang=en -->
Darkness, warmth and oxygen

```conllu
# sent_id = question:world:22-photosynthesis:t10:o4:1
# text = Darkness, warmth and oxygen
1	Darkness	darkness	NOUN	NN	Number=Sing	0	root	_	SpaceAfter=No
2	,	,	PUNCT	,	_	3	punct	_	_
3	warmth	warmth	NOUN	NN	Number=Sing	1	conj	_	_
4	and	and	CCONJ	CC	_	5	cc	_	_
5	oxygen	oxygen	NOUN	NN	Number=Sing	1	conj	_	_
```

<!-- .note -->
The frames reader finds no event or fact in this sentence.

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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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