Sub-skill U2 Test

The Eiffel Tower, constructed in 1889, stands at a height of 330 meters and attracts millions of visitors each year. Originally built as a temporary structure for the 1889 World's Fair, it has since become an enduring symbol of France and one of the most recognizable landmarks in the world.

In what year was the Eiffel Tower constructed?

• 1890

• 1889

• 1900

• 1789

The Great Wall of China stretches over 13,000 miles and was originally built to protect Chinese states from invasions. The wall, made primarily of stone, wood, and other materials, has been rebuilt and maintained over many dynasties, most notably during the Ming Dynasty (1368–1644).

During which dynasty was the Great Wall of China most notably rebuilt?

• Qing Dynasty

• Tang Dynasty

• Ming Dynasty

• Han Dynasty

Polar bears are classified as marine mammals because they spend most of their lives on sea ice. Their primary habitat is the Arctic region, where they rely on sea ice for hunting seals, their main food source. Due to climate change and the melting of sea ice, polar bears are facing increasing threats to their survival.

What is the main food source for polar bears?

• Fish

• Seals

• Penguins

• Whales

Marie Curie was a pioneering scientist best known for her research on radioactivity. She was the first woman to win a Nobel Prize, and the only person to win Nobel Prizes in two different scientific fields: physics and chemistry. Curie's discoveries laid the groundwork for advances in medical treatments such as radiation therapy.

How many Nobel Prizes did Marie Curie win?

• One

• Two

• Three

• Four

The Sahara Desert, located in northern Africa, is the largest hot desert in the world, covering an area of over 9 million square kilometers. It is characterized by vast stretches of sand dunes, rocky plateaus, and minimal vegetation. Despite its harsh environment, the Sahara is home to several animal species adapted to extreme heat, such as camels and desert foxes.

Which desert is the largest hot desert in the world?

• Gobi Desert

• Arabian Desert

• Kalahari Desert

• Sahara Desert

Photosynthesis is the process by which plants convert sunlight into chemical energy. During this process, plants absorb carbon dioxide from the atmosphere and release oxygen. Photosynthesis is crucial not only for plants but also for maintaining life on Earth by producing the oxygen we breathe.

What gas do plants absorb during photosynthesis?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

Jupiter is the largest planet in our solar system and is primarily composed of hydrogen and helium. It has a total of 79 known moons, including the four largest, known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Jupiter’s Great Red Spot is a massive storm that has been raging for centuries.

How many moons does Jupiter have?

• 4

• 12

• 79

• 9

The Taj Mahal, located in Agra, India, is an ivory-white marble mausoleum built in the 17th century by the Mughal emperor Shah Jahan in memory of his wife Mumtaz Mahal. It is considered one of the most beautiful buildings in the world and is a UNESCO World Heritage Site.

Who built the Taj Mahal?

• Akbar

• Shah Jahan

• Babur

• Aurangzeb

The Pacific Ocean is the largest and deepest ocean in the world, covering more than 63 million square miles. It extends from the Arctic Ocean in the north to the Southern Ocean in the south and is bounded by Asia and Australia to the west and the Americas to the east. The Mariana Trench, located in the Pacific, is the deepest part of the world’s oceans.

Where is the Mariana Trench located?

• Indian Ocean

• Atlantic Ocean

• Arctic Ocean

• Pacific Ocean

The Leaning Tower of Pisa, located in Pisa, Italy, is famous for its unintended tilt. Construction began in the 12th century, but due to unstable foundation soil, the tower began to lean during its construction. Despite efforts to stabilize it, the tower remains tilted to this day and is a major tourist attraction.

What caused the Leaning Tower of Pisa to tilt?

• Earthquakes

• Weak construction materials

• Unstable foundation soil

• Design flaw