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Worries and hopes: climate, the UN, space, AI, and is the world getting better?

Tests: 6 of 12 right · Exam: 4 of 4 right · Kind: ★★ · Understood: 6 of 16 · Run: 2026-10-18, commit f3c23ea72

Lesson 79 of the history 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 · ★★ · right ✓

Ruby's uncle: "Global warming's a hoax, mate, it snowed last week." Best answer?

  • 1. One cold week is weather; the long-term climate is about 1.3 °C warmer — ← Mova's choice · ✓ the right answer · no support
  • 2. Nobody has ever measured temperatures — no support
  • 3. He's right, mate: a week of snow proves the planet is not warming at all — no support
  • 4. The Earth is getting colder every year — 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 2 · ★★ · right ✓

Max: "The ozone hole thing, did they fix it or nah?" What's the honest answer?

  • 1. Countries banned the harmful chemicals in 1987 and it is slowly healing — ← Mova's choice · ✓ the right answer · score 7
  • 2. It was fixed in one day in 1950 — score 4
  • 3. Nah, it just got bigger and bigger every year until it swallowed the Moon — no support
  • 4. Nothing was ever done — no support

Why: It took the question to ask which statement is true. It chose option 1 with score 7, against 4 for the next best. Its support: lesson 79, line 4: «There are real stories of fixing things together: countries agreed in 1987 to ban the chemicals eating the ozone layer, and it is slowly healing; solar power b…», reached through the same lesson line as the sentence the question matched. What matched: the same doer «countries» (+5); the same place «1987» (+2). · the question and its options parsed, with trees and pragmatics

Test 3 · ★★ · wrong ✗

Ella's Gen X dad: "Solar panels? Total bummer, way too pricey." ("Bummer" means a letdown.) What changed?

  • 1. Solar panels stopped working — ← Mova's choice · no support
  • 2. They are only used on the Moon — no support
  • 3. Solar panels cost about ten times more now than they did back in 2010 — no support
  • 4. Solar power got about ten times cheaper between 2010 and 2020 — ✓ 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 4 · ★★ · right ✓

Josh: "The UN runs the whole world, right? Like a final boss?" ("Final boss" is the strongest enemy at the end of a game.) What's true?

  • 1. It helps countries talk, but has no power to rule them and often cannot stop wars — ← Mova's choice · ✓ the right answer · no support
  • 2. It has no members at all — no support
  • 3. It rules every country like a king — no support
  • 4. It was closed down in 1950 — 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 5 · ★★ · wrong ✗

Danylo: "Are there fewer wars now?" His dad: "It's complicated, synku." ("Synku" means son, in Ukrainian.) Why is it complicated?

  • 1. Nobody knows what a war is — ← Mova's choice · no support
  • 2. All wars ended in 1945 — no support
  • 3. There were never any wars before 1945 — no support
  • 4. Some measures show fewer war deaths after 1945, but recent years saw more fighting — ✓ 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 6 · ★★ · right ✓

Leo's mate: "Loads of people go to space now, my cousin's going next week, no cap." What's more exact?

  • 1. Only a bit over 600 people have ever been to space — ← Mova's choice · ✓ the right answer · no support
  • 2. Nobody has ever been, it was all filmed in a studio — no support
  • 3. Millions of people go up every single year now, no cap — no support
  • 4. Everyone over 18 has been once, it's like a school trip — 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 · ★★ · wrong ✗

Aisha says AI helps doctors. Her mate: "AI's gonna take over, bruv, it's giving Terminator." ("It's giving" means it looks like.) Fairest view?

  • 1. AI already rules the world — no support
  • 2. AI has never helped anyone — ← Mova's choice · score 1
  • 3. Worrying about AI is always silly, because computers can never ever go wrong — no support
  • 4. Both the hopes and the worries are real, and people are working on safety — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 2 with score 1, the only option with support. Its support: lesson 79, line 13: «AI helped scientists predict the shapes of proteins, the tiny building parts of every living thing, work that won a Nobel Prize in 2024; people also worry abou…», reached through the option's own match among the sentences about the question's things. What matched: the same action «help» (+2); the same doer «ai» (+2). Against it: one says «not», the other does not (counts against) (-3). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 8 · ★★ · right ✓

Mila's neighbour: "Them vaccines were rushed, done in a weekend." What's true?

  • 1. They were invented back in 1900 and just kept on a shelf until 2020 — score 4
  • 2. They were made within a year using many years of earlier research — ← Mova's choice · ✓ the right answer · score 5
  • 3. They were made in a weekend with no research at all, just guessing — score 4
  • 4. No vaccine was ever really made; people all just got better on their own — score 4

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 79, line 14: «COVID-19 vaccines were made within a year in 2020, faster than ever before, by using many years of earlier research.», reached through the remembered sentence the question matched. What matched: the same action «make» (+2); the same thing acted on «covid 19 vaccines» (+2); the same property (+1). · the question and its options parsed, with trees and pragmatics

Test 9 · ★★ · right ✓

Oliver: "Are animals disappearing? Like, all of them?" Best answer?

  • 1. Many wild populations have fallen since 1970, though experts argue how much — ← Mova's choice · ✓ the right answer · no support
  • 2. Only dinosaurs have disappeared — no support
  • 3. Animals are doing better than ever everywhere, with more of every kind since 1970 — no support
  • 4. All animals have vanished — 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 10 · ★★ · wrong ✗

The teacher asks, "Is the world getting better?" Half the class yells "Yes!", half "Nah, it's cooked!" Who's right?

  • 1. Only the "no" side — ← Mova's choice · no support
  • 2. Nobody, because the world never changes — no support
  • 3. Both sides have real evidence: health and poverty improved, climate and nature worsened — ✓ the right answer · no support
  • 4. Only the "yes" side — 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 11 · ★★ · wrong ✗

Gran watches the telly: "It's all bad news, love." What would happen if the news reported slow good changes as often as disasters?

  • 1. Nothing would be different — no support
  • 2. The world would seem less hopeless, closer to what the data shows — ✓ the right answer · no support
  • 3. The world would get worse — no support
  • 4. People would stop watching all news, because good news is always boring — ← Mova's choice · score 6

Why: It took the question to ask what happens next. It chose option 4 with score 6, the only option with support. Its support: lesson 79, line 3: «News makes the picture look darker than it is, because a sudden disaster makes a headline while a slow good change, like a vaccine saving lives year after year…», reached through what followed the sentence the question matched. What matched: the same doer «vaccine» (+4); the same light verb (be, have, do, get, go) (+2). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 12 · ★★ · wrong ✗

Kai: "Can kids make a difference, or is that just a vibe?" What's the wise answer?

  • 1. No, kids can never change anything — ← Mova's choice · no support
  • 2. Yes, and kids must fix the climate all alone, without any help from adults — no support
  • 3. Yes, in small ways, but big problems need many people and governments — ✓ the right answer · no support
  • 4. Only by buying more things — 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 1 · formal language · right ✓

Identify the principal cause of the warming of the Earth observed since the late nineteenth century.

  • 1. The combustion of coal, oil and gas by human beings — ← Mova's choice · ✓ the right answer · no support
  • 2. The activity of volcanoes alone, without any human part — no support
  • 3. The approach of the Sun towards the Earth year by year — no support
  • 4. The respiration of cattle and other domestic animals — 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 2 · formal language · right ✓

Which of the following statements most accurately characterises the outcome of the agreement concluded in nineteen hundred and eighty-seven in respect of the ozone layer?

  • 1. The ozone layer was wholly destroyed — no support
  • 2. The harmful chemicals were prohibited and the ozone layer is gradually recovering — ← Mova's choice · ✓ the right answer · score 3
  • 3. The agreement prohibited the use of solar energy — no support
  • 4. No measures were ever adopted — no support

Why: It took the question to ask who or what does it. It chose option 2 with score 3, the only option with support. Its support: lesson 79, line 4: «There are real stories of fixing things together: countries agreed in 1987 to ban the chemicals eating the ozone layer, and it is slowly healing; solar power b…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+2); the same doer «layer» (+1). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Select the response consistent with the established facts concerning the United Nations.

  • 1. It was founded in nineteen hundred and forty-five and now comprises one hundred and ninety-three member states — ← Mova's choice · ✓ the right answer · no support
  • 2. It exercises sovereign rule over every state of the world — no support
  • 3. It was founded in eighteen hundred and fifteen with five members — no support
  • 4. It was dissolved in nineteen hundred and fifty — 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 · right ✓

Ascertain the response most consistent with the evidence in respect of the question whether the world is improving.

  • 1. No change of any kind has occurred since nineteen hundred — no support
  • 2. Every aspect of human life has deteriorated, without any exception, since nineteen hundred — no support
  • 3. Every aspect of human life is now without defect — no support
  • 4. Health, schooling and poverty have improved, whereas climate and nature have worsened — ← Mova's choice · ✓ the right answer · score 4

Why: It took the question to ask which statement is true. It chose option 4 with score 4, the only option with support. Its support: lesson 79, line 16: «Health, schooling and poverty have improved a lot; climate and nature are worse or at risk; Max Roser says the world is much better, awful, and can be much bet…», reached through the remembered sentence the question matched. What matched: the same action «improve» (+2); the same doer «health» (+2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/history/79-worries-and-hopes-is-the-world-getting-better/