Earth

Although nearly three quarters of the surface of Earth is covered with water, exploration of the depths oceans began relatively late. Since ancient times, the instruments used to measure the depth and explore the ocean floor have improved enormously.

Arrange the following depth measuring methods in chronological order.

a. sonar  b. sounding using a weighted hemp road  
c. laser  d. radar  e. sounding using a weighted steel road

b-a-e-c-d

c-b-d-a-e

b-e-a-d-c

e-b-a-d-c

An island is a piece of sub-continental land that is surrounded by water. Use your atlas to identify the islands below from their outlines (the sizes are not to scale).

a)     b)     c)   d)

Match the islands with their descriptions.

1 This island is the home of a small marsupial, ’devil’.

2 This island has a subpolar oceanic climate. The Atlantic (or common) puffin breeds here and is one of the symbols of the island.

3 This is the fourth largest island in the world and the largest producer of vanilla.

4 The former name of this island, Isla Formosa (beautiful island), was given by its Portuguese discoverers, out of admiration for its natural beauty.

1–b; 2–c; 3–d; 4–a	1–a; 2–c; 3–d; 4–b
1–c; 2–b; 3–d; 4–a	1–c; 2–d; 3–a; 4–b

Which of the following statements are true for the Antarctic?

1 The Antarctic is much colder than the Arctic region.
2 The Anntarctic is ’unowned’ by any country.
3 The post and sign that mark the location of the geographical South Pole is repositioned every year.
4 There are lakes under the Antarctic ice sheet. 

Statements 1 and 3.	Statements 1 and 3.
All four statements.	None of them.

Read the following sentence and mark the correct answer.

The Gulf of Bothnia is navigable in winter because the western coasts of Europe are warmed by the North-Atlantic Current.

The first part is true, the second part is also true and there is a cause-and-effect relation between them. The first part is true, the second part is false. The first part is true, the second part is also true but there is no cause-and-effect relation between them. The first part is false while the second part is true.

Mark the false statement.

Lake Tanganyika is the deepest lake in Africa.	The Congo delta was deepened by tide.
Nearly one third of African contintent consists of enclosed drainage basins.	Equatorial regions are characterised by high precipitation.

You have an image of 640*380 pixels, saved as a 24-bit uncompressed bitmap file. You need to reduce the size of the image. You reduce both the height and the width to 75% of the original, then save the picture as a 256-colour bitmap file.

How many kilobytes can you spare this way?

729

579

142

399

There are often interactions between the member species of communities between animal species sharing the same habitat. For example, wildlife documentaries often show groups of pilot swimming with sharks.

What is the type of interaction between sharks and pilot fish called?

Competition: both species are disadvantaged as they live in the same habitat and consume the same food. Commensalism: two species live alongside in close proximity, pilot fish consuming leftovers around the sharks. Loose mutualism: both species benefit from hunting together, because it is easier for them to spot the prey and enemy species as well. Predation: one species hunts the other.

A male lion killed a zebra and took it home for lunch for himself, his partner and their cub. If he ate the zebra himself, it would take him 3 hours to finish it. If his partner ate it alone, it would take her 4 hours to finish the meal. The lion cub would finish eating the zebra in 12 hours.

How long will take it for the lion family to eat the zebra?

1.25 h

1.5 h

1.75 h

2 h

One-eyed Jack, the pirate captain divided four fifths of the looted wealth among the pirates. He kept three quarters of the remainder, and spent the rest on renewing his ship.

What percent of the looted wealth did he spend on his ship?

5 %

10 %

15 %

20 %

In which country would you find the following local specialties on the menu?

Breakfast: migas, jamón serrano

Lunch:

   soup: gazpacho

   main course: paella, cocido

   dessert: churros

Supper: tapas

France

Spain

Greece

Italy

The unit of electric charge was named after a French physicist who was born in Angoulême and was elected member of the French Academy of Sciences in 1782. He is one of the 72 scientists whose names are engraved on the Eiffel tower.

Which of the following are his achievements?

1 improving the magnetic compass

2 working out the law of electric force

3 designing Fort Bourbon on the island of Martinique

4 working out the theory of simple machines

1, 2 and 3	1 and 4
2 and 4	all 4

Crossword puzzle – What's that?

1. Purple ... Killarney, Ireland
2. ... Purple, British rock band
3. Wild plant with purple flowers, the national flower of Scotland
4. Victoria Cross has a purple ...
5. Common people didn't use to wear purple, it was associated with ...
6. Purple garment is worn by ... during Lent and Easter
7. In Britain, purple is sometimes associated with ... (great sadness following the death of a close relative)
8. One of the synonyms of purple
9. Purple sea ... (small sea creature with spikes)
10. Purple gemstone
11. Fruit that was used to make purple dye in the Middle Ages.
12. Garden plant with purple flowers and sweet smell

The common name of the Canadian police	An opera house in Paris
An underground line in London	A shade of purple