Coal, oil and gas
Tests: 5 of 11 right · Exam: 3 of 4 right · Kind: ★ · Understood: 8 of 15 · Run: 2026-10-18, commit f3c23ea72
Lesson 59 of the geography 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 ✓
"oil comes from dead dinosaurs" — it says so on a cartoon dinosaur at a petrol station. What is true?
- 1. Oil comes from tree sap — score 5
- 2. Oil comes mostly from tiny sea plankton, not dinosaurs — ← Mova's choice · ✓ the right answer · score 7
- 3. Oil comes from volcanoes only — score 5
- 4. Yes, oil is melted dinosaurs, and that's exactly why it is black — no support
Why: It took the question to ask which statement is true. It chose option 2 with score 7, against 5 for the next best. Its support: lesson 59, line 3: «Oil and gas come from tiny sea plankton buried in mud and slowly cooked by the heat underground. Coal powered the Industrial Revolution from the late 1700s, bu…», reached through the remembered sentence the question matched. What matched: the same place «tiny sea plankton» (+4); the same action «come» (+3). · the question and its options parsed, with trees and pragmatics
Test 2 · ★ · wrong ✗
A lump of coal shows the print of a fern leaf. Why?
- 1. Ferns grow on coal today — ← Mova's choice · no support
- 2. Coal formed from ancient swamp forests — ✓ the right answer · no support
- 3. Coal is made of fossil fish — no support
- 4. Someone drew the fern on it with a pencil — 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 · ★ · right ✓
grandad: "my dad went down the pit at 14, bloody dangerous it was." What dangers did miners face?
- 1. Explosions, roof falls and lung disease — ← Mova's choice · ✓ the right answer · no support
- 2. Sunburn and seasickness — no support
- 3. Bee stings and snake bites in the dark tunnels — no support
- 4. Too much fresh air — 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 · ★ · wrong ✗
What would happen if we kept burning fossil fuels at today's rate for centuries?
- 1. The climate would cool down — ← Mova's choice · no support
- 2. They would run out, and the warming would get much worse — ✓ the right answer · no support
- 3. The air would get cleaner — no support
- 4. They would grow back faster than we can ever use them up — 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 ✗
Jack: "why can't we just make more coal when it runs out?" What's the answer?
- 1. We can, in a week in any bog in Ireland — no support
- 2. Coal is made only on the Moon, far away — ← Mova's choice · score 2
- 3. It takes millions of years to form — ✓ the right answer · score 2
- 4. It's against the law to make coal at home — score 2
Why: It took the question to ask why something happens (its cause). It chose option 2 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 59, line 1: «Coal, oil and natural gas are called fossil fuels because they are made from living things that died millions of years ago. When we burn them we release sunlig…», reached through the option's own match among the sentences about the question's things. What matched: the same action «make» (+2). The right option, 3, scored 2. · the question and its options parsed, with trees and pragmatics
Test 6 · ★ · wrong ✗
An oil tanker hits rocks near a coast. What will most likely happen to seabirds there?
- 1. They will fly faster and further — ← Mova's choice · no support
- 2. They will find much more food in the oil — no support
- 3. Nothing at all happens — no support
- 4. Oil coats and poisons them and many die — ✓ 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 7 · ★ · wrong ✗
Why did Britain once have so many factories in towns near coal mines?
- 1. Coal made the towns warm even in summer — ← Mova's choice · score 2
- 2. Coal kept the rain off the factory roofs — no support
- 3. Coal powered the Industrial Revolution — ✓ the right answer · no support
- 4. Coal smelled nice — no support
Why: It took the question to ask why something happens (its cause). It chose option 1 with score 2, the only option with support. Its support: lesson 49, line 5: «When plates collide, layers of rock can be bent into folds like a rug pushed against a wall, and old towns built from local stone show the geology under their…», reached through the option's own match among the sentences about the question's things. What matched: the same action «build» (+2). The right option, 3, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics
Test 8 · ★ · wrong ✗
Why do sun and wind count as clean energy and coal does not?
- 1. Sun and wind do not burn fuel or release carbon dioxide — ✓ the right answer · score 3
- 2. Coal is cleaner but more expensive — no support
- 3. Sun and wind are made from coal — ← Mova's choice · score 4
- 4. Sun and wind are fossil fuels too — score 3
Why: It took the question to ask why something happens (its cause). It chose option 3 with score 4, against 3 for the next best. Its support: lesson 6, line 3: «How salty a sea is depends on a simple balance: lots of rivers make it fresher, like the Baltic, and strong sun and few rivers make it saltier, like the Medite…», reached through the option's own match among the sentences about the question's things. What matched: the same action «make» (+2); the same doer «strong sun» (+2). The right option, 1, scored 3. · the question and its options parsed, with trees and pragmatics
Test 9 · ★ · right ✓
A bog in Ireland has brown, squashy, rotting plant layers that burn when dried. What is it?
- 1. Oil — no support
- 2. Chalk — no support
- 3. Peat — ← Mova's choice · ✓ the right answer · score -3
- 4. Coal — no support
Why: It took the question to ask what it is done to. It chose option 3 with score -3, the only option with support. Its support: lesson 59, line 2: «Coal is squashed swamp forest, mostly from the Carboniferous period, about 360-300 million years ago. Bogs today show the first step: peat, partly rotted plant…», reached through the option's own match among the sentences about the question's things. Against it: the same thing acted on «first step» (-1); the same doer «bogs» (-2). · the question and its options parsed, with trees and pragmatics
Test 10 · ★ · right ✓
Which fuel did not exist before the Carboniferous swamps?
- 1. Most of the world's coal — ← Mova's choice · ✓ the right answer · no support
- 2. Running water — no support
- 3. Sunlight — no support
- 4. Wind — 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 · ★ · right ✓
Thick smog in a big city makes people cough. What is one main cause?
- 1. Burning coal and oil — ← Mova's choice · ✓ the right answer · score 3
- 2. Rainbows after summer rain — no support
- 3. Ocean waves on the coast — no support
- 4. Too many trees in the parks — no support
Why: It took the question to ask which statement is true. It chose option 1 with score 3, the only option with support. Its support: lesson 23, line 13: «Since the 1800s Earth has warmed by about 1.3 degrees Celsius on average, mainly because people burn coal, oil and gas.», reached through the option's own match among the sentences about the question's things. What matched: the same action «burn» (+2); the same thing acted on «coal» (+1). · the question and its options parsed, with trees and pragmatics
Exam question 1 · formal language · right ✓
Which of the following statements most accurately characterises the origin of fossil fuels?
- 1. They derive from the remains of plants and minute marine organisms interred over millions of years — ← Mova's choice · ✓ the right answer · no support
- 2. They are produced annually by the action of rainfall — no support
- 3. They derive from the bones of dinosaurs melted by volcanic heat — no support
- 4. They are formed within factories from sand — 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 ✓
Identify the principal consequence of the combustion of fossil fuels for the climate.
- 1. The emission of oxygen, which cools the atmosphere — no support
- 2. The enlargement of the polar ice sheets — no support
- 3. The emission of carbon dioxide, the principal cause of present global warming — ← Mova's choice · ✓ the right answer · score 5
- 4. The cessation of all rainfall — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 5, the only option with support. Its support: lesson 59, line 4: «Burning fossil fuels gives off carbon dioxide, the main cause of today's global warming, and smoke that harms people's lungs. They took millions of years to fo…», reached through the same lesson line as the sentence the question matched. What matched: the same action «give off» (+3); the same thing acted on «carbon dioxide» (+2). · the question and its options parsed, with trees and pragmatics
Exam question 3 · formal language · right ✓
Select the response that is consistent with the established facts concerning the designation of fossil fuels as non-renewable.
- 1. Their supply is unlimited in perpetuity — no support
- 2. They may lawfully be employed but once — no support
- 3. Their formation required millions of years whereas their consumption occupies centuries — ← Mova's choice · ✓ the right answer · score 8
- 4. They are restored in full on an annual basis — no support
Why: It took the question to ask which statement is true. It chose option 3 with score 8, the only option with support. Its support: lesson 59, line 14: «Fossil fuels are non-renewable: they took millions of years to form and we are using them up in centuries.», reached through the remembered sentence the question matched. What matched: the same thing acted on «millions» (+5); the same action «take» (+3). · the question and its options parsed, with trees and pragmatics
Exam question 4 · formal language · wrong ✗
Ascertain the year in which the last coal-fired power station in Britain was closed.
- 1. Two thousand and fifty — ← Mova's choice · no support
- 2. Nineteen hundred and twenty-four — no support
- 3. Eighteen hundred and forty-two — no support
- 4. Two thousand and twenty-four — ✓ 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
This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/geography/59-coal-oil-and-gas/