Canals: Suez, Panama and the shortcuts

Tests: 3 of 11 right · Exam: 3 of 4 right · Kind: ★★★ · Understood: 12 of 15 · Run: 2026-10-18, commit f3c23ea72

Lesson 20 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 ✓

In Europa Universalis 5 you can never sail through Suez. Is that a mistake in the game?

1. No, the canal opened in 1869, long after the game's period ends — ← Mova's choice · ✓ the right answer · score 3
2. No, because a canal at Suez has never been opened at all — no support
3. Yes, the Ottomans opened it in 1517, right in the middle of the game — no support
4. Yes, Suez has been open since Roman times without a break — 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 20, line 4: «In Europa Universalis 5 trade between Europe and Asia must sail around the Cape of Good Hope, and that is true for the game's whole period, because Suez opened…», reached through the same lesson line as the sentence the question matched. What matched: the same action «end» (+2); the same circumstance (+2). Against it: a different doer (counts against) (-1). · the question and its options parsed, with trees and pragmatics

Test 2 · ★★★ · wrong ✗

«one boat gets stuck and the whole world freaks out?? lol» Which is the best answer?

1. The ship was carrying nearly all the world's food for that year, so people went hungry — ← Mova's choice · no support
2. Nothing really happened; it was just a news story that people made a fuss about online — no support
3. Only Egypt was really affected, because the ship only carried goods for Egyptian shops — no support
4. A big share of world trade passes through one narrow canal, so a block delays goods everywhere — ✓ 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 ✗

Mia says canals are «a modern thing, like from the 1900s». What would you tell her?

1. Only the Romans ever dug canals, and nobody since — no support
2. Parts of China's Grand Canal are over 2,000 years old — ✓ the right answer · no support
3. Canals were first dug in the 1800s, when steam engines came in — ← Mova's choice · score 7
4. She is right, the first canal ever dug was at Panama — score 7

Why: It took the question to ask what it is done to. It chose option 3 with score 7, tied with another option at 7 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 20, line 16: «Britain's Bridgewater Canal, opened in 1761, carried coal to Manchester (a horse on the bank could pull a boat holding far more coal than a cart on a road) and…», reached through the same lesson line as the sentence the question matched. What matched: it fills the role the question asks for (+4); the same thing acted on «bridgewater canal» (+3). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 4 · ★★★ · right ✓

«why's panama got locks and suez hasn't, that's dumb» Which is the best answer?

1. Panama crosses hills, so locks lift ships; Suez crosses flat land between seas at about the same level — ← Mova's choice · ✓ the right answer · score 6
2. Locks were only invented after Suez opened, so it was too late to add them to that canal — score 5
3. Suez is much older, and old canals were built before anyone thought they would need locks — score 5
4. Panama's ships are far heavier, and heavy ships can only cross water if they use locks — score 4

Why: It took the question to ask why something happens (its cause). It chose option 1 with score 6, against 5 for the next best. Its support: lesson 20, line 11: «The Panama Canal opened in 1914 and is about 82 km long, using locks to lift ships about 26 metres up to Gatun Lake and back down again.», reached through the cause of the sentence the question matched. What matched: the same action «lift» (+4); the same thing acted on «ships» (+4). Against it: a different doer (counts against) (-2). · the question and its options parsed, with trees and pragmatics

Test 5 · ★★★ · wrong ✗

What would happen if the Panama Canal's lake ran low in a long drought?

1. Ships would sail faster, because shallow water slows them down less — no support
2. Fewer ships could pass, because the locks need lots of fresh water — ✓ the right answer · no support
3. Nothing at all, because the locks are worked with no water whatsoever — ← Mova's choice · score 3
4. The canal would fill with sea water and actually work better than before — score 2

Why: It took the question to ask what happens next. It chose option 3 with score 3, against 2 for the next best. Its support: lesson 6, line 4: «A lake is water closed in by land, and the Caspian is so huge and salty that people call it a sea, while Baikal is so deep it holds more water than all five Gr…», reached through the option's own match among the sentences about the question's things. What matched: the same doer «lake» (+2); the same circumstance (+2). Against it: a different thing acted on (counts against) (-1). The right option, 2, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Test 6 · ★★★ · wrong ✗

Why were canals cheaper than roads for moving heavy coal?

1. Coal floats by itself, so it could simply be pushed along the water — score 1
2. Boats need nobody to steer them, so no wages had to be paid to boatmen — no support
3. Roads were all toll roads, and canals were always free to use for everyone — ← Mova's choice · score 5
4. A horse could pull a much heavier load on a floating boat than on a cart — ✓ the right answer · score 4

Why: It took the question to ask why something happens (its cause). It chose option 3 with score 5, against 4 for the next best. Its support: lesson 20, line 11: «The Panama Canal opened in 1914 and is about 82 km long, using locks to lift ships about 26 metres up to Gatun Lake and back down again.», reached through the option's own match among the sentences about the question's things. What matched: the same action «use» (+3); the same doer «panama canal» (+2). The right option, 4, scored 4. · the question and its options parsed, with trees and pragmatics

Test 7 · ★★★ · wrong ✗

«what did the yanks learn from the french failing in panama» Which is the best answer?

1. To give up on canals and build a railway instead — ← Mova's choice · no support
2. To fight the mosquitoes that spread disease, and to use locks — ✓ the right answer · no support
3. To dig with machines only and never use any human workers at all — no support
4. To build the canal through Nicaragua instead of Panama — 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 8 · ★★★ · wrong ✗

Which long voyage did the Canal du Midi help ships avoid?

1. Sailing all the way round Spain and Portugal through Gibraltar — ✓ the right answer · score 3
2. Sailing round South America through the Strait of Magellan — score 2
3. Sailing round Britain and Ireland through the stormy North Sea — score 2
4. Sailing all the way round Africa past the Cape of Good Hope — ← Mova's choice · score 6

Why: It took the question to ask what it is done to. It chose option 4 with score 6, against 3 for the next best. Its support: lesson 19, line 14: «The Bab-el-Mandeb, between Yemen and the Horn of Africa, is about 30 km wide and links the Red Sea to the Gulf of Aden and the Indian Ocean; ships between the…», reached through the option's own match among the sentences about the question's things. What matched: the same place «africa» (+3); it fills the role the question asks for (+2); the same thing acted on «way» (+1). The right option, 1, scored 3. · the question and its options parsed, with trees and pragmatics

Test 9 · ★★★ · wrong ✗

Why did the Suez Canal make Egypt so important to Britain?

1. The canal was the only way to reach Australia — no support
2. Egypt sold Britain the cotton for all its mills, and only the canal could carry it — ← Mova's choice · score 6
3. It was the shortcut on the sea route to India — ✓ the right answer · score 2
4. Britain needed the Nile for drinking water — no support

Why: It took the question to ask why something happens (its cause). It chose option 2 with score 6, against 2 for the next best. Its support: lesson 20, line 16: «Britain's Bridgewater Canal, opened in 1761, carried coal to Manchester (a horse on the bank could pull a boat holding far more coal than a cart on a road) and…», reached through the option's own match among the sentences about the question's things. What matched: the same action «carry» (+3); the same doer «bridgewater canal» (+2); a different thing acted on (counts against) (+1). The right option, 3, scored 2. · the question and its options parsed, with trees and pragmatics

Test 10 · ★★★ · right ✓

«erie canal, so what, it's just a ditch» Which is the best answer?

1. It linked the Great Lakes to the Mississippi and made New Orleans the leading US port — score 12
2. It linked the Great Lakes to the Hudson River and helped New York become the leading US port — ← Mova's choice · ✓ the right answer · score 22
3. It was just a small ditch that nobody ever used, and it was filled in after a few years — no support
4. It was a canal for carrying drinking water to New York City, not for boats — score 10

Why: It took the question to ask a circumstance (with what, when, how). It chose option 2 with score 22, against 12 for the next best. Its support: lesson 20, line 18: «The Erie Canal, opened in 1825, linked the Great Lakes to the Hudson River, helping New York become the leading port of the United States.», reached through the remembered sentence the question matched. What matched: it fills the role the question asks for (+6); the same action «link» (+4); the same doer «erie canal» (+4); the same thing acted on «great lakes» (+4). · the question and its options parsed, with trees and pragmatics

Test 11 · ★★★ · wrong ✗

A ship climbs 26 metres in the Panama locks to Gatun Lake. What must happen before it reaches the Pacific?

1. It must be carried down to the ocean by a giant crane — no support
2. It must wait for high tide to float it over the hills — no support
3. It must climb another 26 metres, because the Pacific is higher still — ← Mova's choice · score 6
4. It must be lowered about 26 metres again through more locks — ✓ the right answer · no support

Why: It took the question to ask which statement is true. It chose option 3 with score 6, the only option with support. Its support: lesson 17, line 9: «Mauna Kea in Hawaii rises over 10,000 metres from its base on the sea floor, taller than Everest, though only about 4,200 metres stick out above the sea.», reached through the remembered sentence the question matched. What matched: the same action «rise» (+4); the same thing acted on «10,000 metres» (+4). Against it: a different doer (counts against) (-2). The right option, 4, found no support in what it remembers. · the question and its options parsed, with trees and pragmatics

Exam question 1 · formal language · wrong ✗

Identify the principal function of a lock upon a canal.

1. The storage of cargo in secure chambers during the hours of darkness — ← Mova's choice · no support
2. The elevation of bridges for the passage of tall vessels — no support
3. The raising or lowering of vessels between stretches of water situated at differing levels — ✓ the right answer · no support
4. The prevention of vessels from departing the canal prior to the payment of the requisite toll — 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 Suez Canal?

1. It was opened in 1869, connects the Mediterranean Sea with the Red Sea, and contains no locks — ← Mova's choice · ✓ the right answer · score 12
2. It was opened in 1914, connects the Atlantic with the Pacific, and contains numerous locks — score 8
3. It was opened in 1895, connects the North Sea with the Baltic Sea, and contains two locks — score 12
4. It was opened in 1825, connects the Great Lakes with the Hudson River, and contains many locks — score 12

Why: It took the question to ask who or what does it. It chose option 1 with score 12, tied with another option at 12 (the first shown, or the one claiming less beyond what it knows, wins). Its support: lesson 20, line 7: «The Suez Canal, opened in 1869, is about 193 km long and joins the Mediterranean to the Red Sea without any locks.», reached through the remembered sentence the question matched. What matched: the same action «open» (+5); the same place «1869» (+4); the same thing acted on «suez canal» (+3). · the question and its options parsed, with trees and pragmatics

Exam question 3 · formal language · right ✓

Ascertain the principal reason for which the French attempt of the 1880s to construct a canal across Panama was abandoned.

1. The project was prohibited by the Government of Spain, which then still ruled the isthmus of Panama — no support
2. Approximately twenty-two thousand workers perished, principally from malaria and yellow fever — ← Mova's choice · ✓ the right answer · score 4
3. The isthmus was found to contain insufficient water for the operation of any locks — no support
4. The requisite funds were diverted to the enlargement of the Suez Canal — no support

Why: It took the question to ask which statement is true. It chose option 2 with score 4, the only option with support. Its support: lesson 20, line 12: «A French attempt to dig a canal in Panama at sea level, without locks, in the 1880s failed after about 22,000 workers died, mostly from malaria and yellow feve…», reached through the same lesson line as the sentence the question matched. What matched: the same action «die» (+2); the same place «malaria» (+2). · the question and its options parsed, with trees and pragmatics

Exam question 4 · formal language · right ✓

Given that each transit of the Panama Canal consumes approximately two hundred million litres of fresh water, determine the consequence of a severe drought such as that of 2023.

1. No consequence whatsoever ensues — no support
2. The duration of each transit is reduced by one half — no support
3. The number of vessels permitted to transit the canal is restricted — ← Mova's choice · ✓ the right answer · score 4
4. The canal is filled with sea water, whereupon transits increase — no support

Why: It took the question to ask which statement is true. It chose option 3 with score 4, the only option with support. Its support: lesson 20, line 13: «Each ship passing through the Panama Canal uses about 200 million litres of fresh water, and a drought in 2023 forced the canal to limit the number of ships.», reached through the same lesson line as the sentence the question matched. What matched: the same action «limit» (+2); the same thing acted on «number» (+2). · the question and its options parsed, with trees and pragmatics

This page in Markdown → https://md.mova.elamur.ai/free/en/school-run/geography/20-canals-suez-panama-and-the-shortcuts/