---
title: What a child can do for nature — how Mova does on the tests · Biology
description: Lesson 285 of the biology course of Mova's primary school: 5 of 11 tests right, exam 2 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/school-run/biology/285-what-a-child-can-do-for-nature/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [at school](https://md.mova.elamur.ai/free/en/school-run/) / [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/) / 285

# What a child can do for nature

<!-- .vintro -->
**Tests:** 5 of 11 right · **Exam:** 2 of 4 right · **Kind:** ★ · **Understood:** 10 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

<!-- .vabout -->
Lesson 285 of the biology course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: [the lesson in the corpora](https://md.mova.elamur.ai/free/en/corpora/school/biology/285-what-a-child-can-do-for-nature/).

<!-- .vabout -->
Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/).

<!-- div qa ok -->

### Test 1 · ★ · right ✓ {#t1}

<!-- .q -->
«dad says tidy lawn = good garden, mow everything» What would help nature more?

- **1.** Leaving one corner long and wild with a log pile — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Covering the grass with stones — no support
- **3.** Spraying the whole lawn against all insects, good and bad — no support
- **4.** Mowing twice as often — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t1/)

<!-- /div -->

<!-- div qa ok -->

### Test 2 · ★ · right ✓ {#t2}

<!-- .q -->
«there's a tiny bird on the path, no flying, just hopping, gonna take it home and save it» What is right?

- **1.** Throw it high into the air so it learns to fly, like its parents do with it — score 4
- **2.** Yes, it needs to live in a box at home — score 4
- **3.** It is probably a fledgling being fed by its parents, so leave it close by — **← Mova's choice** · **✓ the right answer** · score 10
- **4.** Feed it milk and bread at once — score 3

<!-- .why -->
**Why:** It took the question to ask which statement is true. It chose option 3 with score 10, against 4 for the next best. Its support: lesson 269, line 16: «The birds that survived the asteroid were probably small ground birds that ate seeds, because seeds lasted in the ground while forests died.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «small ground birds» (+3); the same light verb (be, have, do, get, go) (+3); the same doer «birds» (+2); the same property (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t2/)

<!-- /div -->

<!-- div qa no -->

### Test 3 · ★ · wrong ✗ {#t3}

<!-- .q -->
Count them: 3 hedgehogs pass through the fence hole. How many legs and how many noses?

- **1.** 6 legs and 3 noses — **← Mova's choice** · no support
- **2.** 12 legs and 12 noses — no support
- **3.** 12 legs and 3 noses — **✓ the right answer** · no support
- **4.** 9 legs and 3 noses — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t3/)

<!-- /div -->

<!-- div qa no -->

### Test 4 · ★ · wrong ✗ {#t4}

<!-- .q -->
What would happen if every garden on a street had a solid fence with no gaps?

- **1.** Hedgehogs would climb over every fence easily — no support
- **2.** Hedgehogs would have more food each — **← Mova's choice** · score 4
- **3.** Hedgehogs would be trapped in one garden and could not find enough food — **✓ the right answer** · score 4
- **4.** Nothing, hedgehogs never leave one garden — score 3

<!-- .why -->
**Why:** It took the question to ask what happens next. It chose option 2 with score 4, tied with another option at 4 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 282, line 10: «The Arabian oryx was extinct in the wild by 1972; zoos bred a herd and released them in Oman and other lands, and it was the first animal to go from extinct in…», reached through what followed the sentence the question matched. What matched: the same thing acted on «first animal» (+4). The right option, 3, scored 4. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t4/)

<!-- /div -->

<!-- div qa no -->

### Test 5 · ★ · wrong ✗ {#t5}

<!-- .q -->
«turtles are thick, who eats a bag lol» Why do they do it?

- **1.** Turtles want to build nests with it on the beach — **← Mova's choice** · score 2
- **2.** Turtles like the taste of plastic — no support
- **3.** A floating bag looks like a jellyfish, their real food — **✓ the right answer** · score 1
- **4.** Turtles eat everything they see that is blue — score 2

<!-- .why -->
**Why:** It took the question to ask who or what does it. It chose option 1 with score 2, tied with another option at 2 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 285, line 7: «A shallow dish of water with a stone in it helps birds, bees and hedgehogs in dry summers; the stone lets insects climb out, and the dish should be cleaned oft…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+2). The right option, 3, scored 1. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t5/)

<!-- /div -->

<!-- div qa ok -->

### Test 6 · ★ · right ✓ {#t6}

<!-- .q -->
In a cartoon a girl keeps a pond frog in a goldfish bowl on her desk and it sings every day. What is real?

- **1.** Frogs live happily in a bowl for years, as long as you sing to them each day — score 4
- **2.** A wild frog taken from its pond often dies, so it is better left there — **← Mova's choice** · **✓ the right answer** · score 5
- **3.** Frogs need no food in a bowl — score 3
- **4.** Frogs prefer tap water to ponds — score 3

<!-- .why -->
**Why:** It took the question to ask which statement is true. It chose option 2 with score 5, against 4 for the next best. Its support: lesson 203, line 11: «Betta fish need more room than a tiny bowl, plus warm, filtered water, and male bettas fight each other, so they are kept one male per tank.», reached through the remembered sentence the question matched. What matched: the same thing acted on «more room» (+4); the same action «need» (+1). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t6/)

<!-- /div -->

<!-- div qa no -->

### Test 7 · ★ · wrong ✗ {#t7}

<!-- .q -->
«one kid turning lights off won't save anything, waste of time» What is right?

- **1.** Turning lights off harms birds — **← Mova's choice** · score 5
- **2.** Small choices by many people add up to a big difference — **✓ the right answer** · no support
- **3.** Lights do not affect animals at all — score 5
- **4.** Yes, only scientists in laboratories can help nature — no support

<!-- .why -->
**Why:** It took the question to ask which statement is true. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 56, line 1: «A plant is a food factory: in its green leaves it takes light from the Sun, water from the ground and carbon dioxide from the air, and turns them into sugar, g…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «light» (+3); the same action «turn» (+2). The right option, 2, found no support in what it remembers. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t7/)

<!-- /div -->

<!-- div qa no -->

### Test 8 · ★ · wrong ✗ {#t8}

<!-- .q -->
Why might a garden full of fancy foreign flowers have fewer butterflies than a wild meadow?

- **1.** Foreign flowers grow far too tall for butterflies to reach the tops — **← Mova's choice** · score 4
- **2.** Butterflies do not like colours — no support
- **3.** Many caterpillars can eat only certain native plants — **✓ the right answer** · score 3
- **4.** Butterflies only live in towns — no support

<!-- .why -->
**Why:** It took the question to ask why something happens (its cause). It chose option 1 with score 4, against 3 for the next best. Its support: lesson 59, line 13: «A fruit is the part of a plant that grows from the flower and holds the seeds, so tomatoes, peppers, cucumbers and pea pods are fruits to a scientist, though c…», reached through the option's own match among the sentences about the question's things. What matched: the same action «grow» (+3); the same circumstance (+1). The right option, 3, scored 3. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t8/)

<!-- /div -->

<!-- div qa ok -->

### Test 9 · ★ · right ✓ {#t9}

<!-- .q -->
«found a hedgehog on the lawn at night, should i give it a saucer of milk» What is right?

- **1.** Yes, warm milk with bread is best — score 4
- **2.** No, milk upsets its stomach; a shallow dish of water is better — **← Mova's choice** · **✓ the right answer** · score 7
- **3.** No, hedgehogs never drink anything — no support
- **4.** Yes, milk is its favourite drink, so a big saucer every night is best — no support

<!-- .why -->
**Why:** It took the question to ask which statement is true. It chose option 2 with score 7, against 4 for the next best. Its support: lesson 285, line 7: «A shallow dish of water with a stone in it helps birds, bees and hedgehogs in dry summers; the stone lets insects climb out, and the dish should be cleaned oft…», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «stomachs» (+3); the same action «upset» (+2); the same doer «milk» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t9/)

<!-- /div -->

<!-- div qa no -->

### Test 10 · ★ · wrong ✗ {#t10}

<!-- .q -->
«picked up 20 bits of plastic on the beach, 6 were bottle tops — no wait, 8. how many weren't bottle tops»

- **1.** 8 — **← Mova's choice** · no support
- **2.** 12 — **✓ the right answer** · no support
- **3.** 20 — no support
- **4.** 14 — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t10/)

<!-- /div -->

<!-- div qa ok -->

### Test 11 · ★ · right ✓ {#t11}

<!-- .q -->
Why does a photo matter when you report a rare beetle to a nature app?

- **1.** It tells the beetle you are there — no support
- **2.** It makes the beetle bigger — no support
- **3.** Apps do not accept words — no support
- **4.** Experts can check what it really is — **← Mova's choice** · **✓ the right answer** · score 6

<!-- .why -->
**Why:** It took the question to ask why something happens (its cause). It chose option 4 with score 6, the only option with support. Its support: lesson 285, line 15: «Apps let children record the animals and plants they see; their photos let experts check what each animal really is and help scientists map where species live.», reached through the same lesson line as the sentence the question matched. What matched: the same action «check» (+4); the same doer «experts» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/t11/)

<!-- /div -->

<!-- div qa no -->

### Exam question 1 · formal language · wrong ✗ {#e1}

<!-- .q -->
Identify the principal reason for which the provision of an aperture at the base of a garden fence is recommended.

- **1.** To facilitate the entry of domestic cats — **← Mova's choice** · no support
- **2.** To deter foxes from the property — no support
- **3.** To permit the passage of hedgehogs between adjoining gardens in search of food — **✓ the right answer** · no support
- **4.** To permit the drainage of rainwater from the lawn — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/e1/)

<!-- /div -->

<!-- div qa ok -->

### Exam question 2 · formal language · right ✓ {#e2}

<!-- .q -->
Select the response consistent with the established facts concerning a juvenile bird discovered upon the ground.

- **1.** It is invariably abandoned and requires removal to a dwelling for hand-rearing — no support
- **2.** It should be fed bread and milk without delay — score 5
- **3.** It must be returned forthwith to the highest available branch — score 5
- **4.** It is frequently a fledgling still attended by its parents and is best left in situ — **← Mova's choice** · **✓ the right answer** · score 8

<!-- .why -->
**Why:** It took the question to ask which statement is true. It chose option 4 with score 8, against 5 for the next best. Its support: lesson 285, line 11: «Many baby birds found on the ground are fledglings that have left the nest before they can fly well, and their parents are still feeding them nearby.», reached through the option's own match among the sentences about the question's things. What matched: the same thing acted on «fledglings» (+3); the same light verb (be, have, do, get, go) (+3); the same doer «many baby birds» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/e2/)

<!-- /div -->

<!-- div qa no -->

### Exam question 3 · formal language · wrong ✗ {#e3}

<!-- .q -->
Ascertain the reason for which the reduction of artificial illumination at night is advised.

- **1.** Darkness increases the population of rodents — **← Mova's choice** · no support
- **2.** Bright lights disorient moths, migrating birds and hatchling turtles — **✓ the right answer** · no support
- **3.** Illumination causes flowers to close prematurely — no support
- **4.** Artificial light accelerates the growth of weeds — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/e3/)

<!-- /div -->

<!-- div qa ok -->

### Exam question 4 · formal language · right ✓ {#e4}

<!-- .q -->
Which of the following statements most accurately characterises the value of planting native flowering species?

- **1.** They furnish the most suitable food for local insects, some of which depend on a single plant — **← Mova's choice** · **✓ the right answer** · score 5
- **2.** They are exclusively of ornamental value — score 5
- **3.** They exclude all insects from the garden — score 5
- **4.** They require no water whatsoever — score 5

<!-- .why -->
**Why:** It took the question to ask who or what does it. It chose option 1 with score 5, tied with another option at 5 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 284, line 16: «Citizen scientists are ordinary people who count birds, butterflies and frogs and send the numbers to scientists; the Big Garden Birdwatch in Britain has hundr…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+3); the same doer «numbers» (+2). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/biology/285-what-a-child-can-do-for-nature/e4/)

<!-- /div -->

<!-- pn -->
- ← previous: [284. Conservation heroes: Attenborough, Goodall, Cars…](https://md.mova.elamur.ai/free/en/school-run/biology/284-conservation-heroes-attenborough-goodall-carson-maathai-and-the-rangers/)
- next →: [286. From field to plate: wheat, flour and bread](https://md.mova.elamur.ai/free/en/school-run/biology/286-from-field-to-plate-wheat-flour-and-bread/)
- ↑ back to [Biology](https://md.mova.elamur.ai/free/en/school-run/biology/)