Mountains: life as you climb higher

Tests: 6 of 11 right · Exam: 1 of 4 right · Kind: ★★ · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 13 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.

Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: the lesson's questions in the corpora.

Test 1 · ★★ · wrong ✗

In a cartoon, a llama spits at every tourist who walks past. What is closer to the truth?

1. Llamas mostly spit at other llamas over food or space — ✓ the right answer · score 10
2. Llamas spit at all people on sight — ← Mova's choice · score 12
3. Llamas spit only at their keepers, who feed them every day — score 8
4. Llamas never spit at all — score 2

Why: It took the question to ask which statement is true. It chose option 2 with score 12, against 10 for the next best. Its support: lesson 13, line 14: «Llamas mostly spit at other llamas, not at people, to settle arguments over food or space; llamas and alpacas come from the Andes and are cousins of camels.», reached through the remembered sentence the question matched. What matched: the same action «spit» (+4); the same doer «llamas» (+4); the same circumstance (+4). The right option, 1, scored 10. · the question and its options parsed, with trees and pragmatics

Test 2 · ★★ · wrong ✗

we're goin up a 3000 m mountain, it's 20 degrees down here. how cold at the top roughly

1. About 20 degrees, the same as down here — ← Mova's choice · no support
2. About 40 degrees, as it's nearer the Sun — no support
3. About minus 60 degrees — no support
4. About 0 degrees, losing about 6 to 7 for every 1000 m — ✓ the right answer · no support

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

Test 3 · ★★ · wrong ✗

Tom says it's colder on mountains because they are further from the Sun. Is he right?

1. No, mountains are actually warmer — ← Mova's choice · score 8
2. Yes, the Sun cannot reach mountain tops — no support
3. No, the thin rising air cools, and a few kilometres are nothing next to the Sun's distance — ✓ the right answer · no support
4. Yes, every metre nearer the Sun is warmer — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, the only option with support. Its support: lesson 13, line 16: «Pikas are small round relatives of rabbits that stack grass into hay piles under rocks for winter, because they do not hibernate; they overheat easily, so warm…», reached through the remembered sentence the question matched. What matched: the same doer «warming mountains» (+4); the same property (+2); the same light verb (be, have, do, get, go) (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · ★★ · right ✓

What would happen to a pika that sat in hot sunshine all afternoon?

1. It could overheat and die — ← Mova's choice · ✓ the right answer · score 8
2. It would fall asleep for the winter — no support
3. It would grow a thicker coat — no support
4. Nothing, pikas love the heat — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, the only option with support. Its support: lesson 13, line 16: «Pikas are small round relatives of rabbits that stack grass into hay piles under rocks for winter, because they do not hibernate; they overheat easily, so warm…», reached through the remembered sentence the question matched. What matched: the same action «overheat» (+4); the same doer «pikas» (+4). · the question and its options parsed, with trees and pragmatics

Test 5 · ★★ · wrong ✗

5 marmots pop up on a rock. How many ears is that?

1. 5 — ← Mova's choice · no support
2. 10 — ✓ the right answer · no support
3. 20 — no support
4. 15 — no support

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

Test 6 · ★★ · right ✓

A yak and a snow leopard: how many legs and hearts together?

1. 8 legs and 2 hearts — ← Mova's choice · ✓ the right answer · no support
2. 4 legs and 2 hearts — no support
3. 6 legs and 2 hearts — no support
4. 8 legs and 4 hearts — no support

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

Test 7 · ★★ · right ✓

Mia picks an edelweiss on an Alpine walk to take home. What is wrong?

1. It is protected and must not be picked in many places — ← Mova's choice · ✓ the right answer · score 8
2. Nothing, there are millions of them — no support
3. It is poisonous to touch — no support
4. It will turn into a weed at home and take over the whole garden — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 8, the only option with support. Its support: lesson 13, line 13: «Edelweiss is covered in thick woolly white hairs that protect it from strong sunlight, cold and drying wind, and it is protected, so it must not be picked in m…», reached through the remembered sentence the question matched. What matched: the same action «pick» (+4); the same place «many places» (+4). · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

In a game, a snow leopard roars to scare off the player. What would a real one do?

1. It barks like a dog — no support
2. It sings like a bird — no support
3. Exactly the same, they roar very loudly — score 4
4. It cannot roar; it makes a puffing sound — ← Mova's choice · ✓ the right answer · score 14

Why: It took the question to ask what is done. It chose option 4 with score 14, against 4 for the next best. Its support: lesson 13, line 11: «Snow leopards of Central Asia use their very long fluffy tail for balance on cliffs and as a warm wrap; they have small round ears and wide furry paws like sno…», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same action «roar» (+4); the same doer «yaks» (+4). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · right ✓

Why might a climber on Everest carry oxygen bottles?

1. Each breath there has only about a third of the oxygen at sea level — ← Mova's choice · ✓ the right answer · score 9
2. Oxygen bottles keep them warm — no support
3. The bottles help them float up the slope — no support
4. There is no air at all above 5000 metres, so they could not breathe otherwise — no support

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 9, the only option with support. Its support: lesson 13, line 6: «Air is thinner higher up, so each breath has less oxygen; at the top of Mount Everest a breath has only about a third of the oxygen it has at the beach, so mos…», reached through the cause of the sentence the question matched. What matched: the same thing acted on «third» (+4); the same doer «breath» (+3); the same light verb (be, have, do, get, go) (+2). · the question and its options parsed, with trees and pragmatics

Test 10 · ★★ · right ✓

Why do baby ibex not fall off the cliffs?

1. Their mothers hold them by the ear — no support
2. They stay in caves until they are grown — score -1
3. They have claws like a cat — no support
4. Their hooves have hard edges and grippy pads, and they climb within days of birth — ← Mova's choice · ✓ the right answer · score 6

Why: It took the question to ask why something happens (its cause). It chose option 4 with score 6, against -1 for the next best. Its support: lesson 13, line 8: «Alpine ibex climb the almost vertical stone walls of dams, like the Cingino dam in Italy, to lick salt, gripping with hooves that have hard edges and soft pads…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «hooves» (+3); the same thing acted on «hard edges» (+2); the same light verb (be, have, do, get, go) (+1). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★ · wrong ✗

If summers in the mountains get warmer year after year, what may happen to the treeline?

1. It may creep higher up the mountain — ✓ the right answer · score 0
2. It will drop down to the valley — no support
3. All the trees will vanish — ← Mova's choice · score 2
4. It will stay exactly where it is now — no support

Why: It took the question to ask what happens next. It chose option 3 with score 2, against 0 for the next best. Its support: lesson 13, line 5: «The treeline is where trees stop on a mountain, because above it the summer is too short and cool and the wind too strong for trees to grow wood; it is about 4…», reached through what followed the sentence the question matched. What matched: the same doer «trees» (+4). Against it: a different action (counts against) (-2). The right option, 1, scored 0. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the principal reason for which mountaineers experience breathlessness at high altitude.

1. The air at altitude contains a greater proportion of dust — ← Mova's choice · no support
2. The reduced density of the air diminishes the oxygen obtained in each breath — ✓ the right answer · no support
3. The force of gravity is substantially greater upon mountains — no support
4. The proximity of the Sun renders the air excessively warm for respiration — no support

Why: Nothing it remembers matched the question, so it guessed: it took the first option shown. · the question and its options parsed, with trees and pragmatics

Exam question 2 · formal language · right ✓

Ascertain the approximate decrease in air temperature that accompanies an ascent of one thousand metres.

1. Approximately six to seven degrees Celsius — ← Mova's choice · ✓ the right answer · no support
2. Approximately thirty degrees Celsius — no support
3. The temperature increases rather than decreases — no support
4. Approximately one degree Celsius — no support

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

Exam question 3 · formal language · wrong ✗

Which of the following statements most accurately characterises the treeline?

1. A row of trees deliberately planted by foresters along each slope of a mountain — ← Mova's choice · no support
2. The altitude above which the season is too brief and cold for trees to grow — ✓ the right answer · no support
3. The point at which the soil becomes poisonous to vegetation — no support
4. The boundary beyond which mountain goats consume all trees — no support

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

Exam question 4 · formal language · wrong ✗

Select the response consistent with the established facts concerning the vocalisation of the snow leopard.

1. It produces no sound of any description — ← Mova's choice · no support
2. It communicates exclusively by whistling — no support
3. It is incapable of roaring and produces a puffing sound — ✓ the right answer · no support
4. It roars more loudly than any other cat — no support

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

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/biology/13-mountains-life-as-you-climb/