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Nature

Animals, plants, climate and the living world: explore the fascinating mechanisms of nature.

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3 questions about Nature

Question 1What astronomical phenomenon is characterized by the fall of meteoric debris burning up in the Earth’s atmosphere?See the answer

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Meteor Shower

Meteor showers, often referred to as "shooting stars," are spectacular events where numerous meteors light up the night sky as they enter the Earth's atmosphere. These meteors usually come from the dust and debris left behind by comets or asteroids. As they…

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Question 2What is the name of the supermassive black hole located at the center of the Milky Way?See the answer

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Sagittarius A*

Sagittarius A* is a supermassive black hole at the heart of our galaxy, the Milky Way. It has a mass equivalent to about 4 million times that of the Sun. Black holes are objects so dense that nothing, not even light, can…

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Question 3What celestial phenomenon occurs when the Moon passes between the Earth and the Sun, blocking sunlight?See the answer

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Solar Eclipse

A solar eclipse occurs during a precise alignment of the Sun, Moon, and Earth, with the Moon positioning itself directly between the Sun and Earth, blocking all or part of the Sun's light. This fascinating celestial spectacle can turn day into night…

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Exotic Fruits and Edible Plants

  1. Which spice is the most expensive in the world, often called “red gold”?See the answer
  2. Which fruit has a shell so hard that it is sometimes opened with a machete?See the answer
  3. Which young fruit is often used as a vegetable substitute for meat thanks to its fibrous texture?See the answer
  4. Which listed fruit generally contains the most vitamin C per 100 grams?See the answer
  5. Which fruit is nicknamed “dragon fruit”?See the answer
  6. Which of these fruits is notorious for its strong and unpleasant smell to many?See the answer
  7. Which listed tropical fruit is commonly harvested green and ripened with ethylene after shipment?See the answer
  8. Which Andean fruit is commonly sold as a powder used as a natural sweetener?See the answer
  9. What plant is known to quickly fold its leaflets when touched?See the answer

The World’s Biodiversity

  1. What is the largest marine animal currently threatened by climate change and collisions with ships?See the answer
  2. Which large bird cannot fly and is known to live on the Galápagos Islands?See the answer
  3. What is the largest living land mammal, classified as “endangered” by the IUCN?See the answer
  4. Which hare from the boreal forests of North America has large feet adapted to traveling on snow?See the answer
  5. Which Central Asian big cat is classified as “vulnerable” by the IUCN?See the answer
  6. Which animal is known for its slow movement and lives mainly in the trees of tropical forests?See the answer
  7. What large white bird is known for its long, flattened bill that widens at the tip?See the answer
  8. Which animal, primarily living on the African continent, is recognized for its distinctive coat made up of vertical stripes?See the answer
  9. What ability do dolphins use to locate prey and navigate by interpreting returning echoes?See the answer

Volcanoes and Geology

  1. Which geological process describes tectonic plates sliding horizontally past each other?See the answer
  2. What type of volcano is generally the largest in volume?See the answer
  3. Which metamorphic rock is formed by the transformation of limestone under high pressure and high temperature?See the answer
  4. What is the geological term for an extremely explosive volcanic eruption?See the answer
  5. Which volcano is known to have caused the “Year Without a Summer” in 1816?See the answer
  6. What is the main difference between lava and magma?See the answer
  7. Which geological phenomenon is primarily responsible for the formation of mountains?See the answer
  8. What type of rock forms when molten rock solidifies?See the answer
  9. What is the largest active volcano on Earth?See the answer

Sustainable Agriculture

  1. Why is crop rotation important in sustainable agriculture?See the answer
  2. What role do cover crops play in sustainable agriculture?See the answer
  3. What is agroforestry?See the answer
  4. What type of agriculture combines plant cultivation and fish farming in an integrated system?See the answer
  5. Which agricultural practice contributes to carbon sequestration in the soil?See the answer
  6. What method grows plants without soil in a nutrient solution, without associated fish farming?See the answer
  7. What is the main benefit of organic farming on the environment?See the answer
  8. Which agricultural system mimics natural ecosystems to create self-sufficient systems?See the answer
  9. What agricultural practice improves soil health and reduces erosion?See the answer

Climate Change

  1. What effect of climate change has a direct impact on human health?See the answer
  2. What strategy is considered an effective means of combating climate change by reducing greenhouse gases?See the answer
  3. What phenomenon is both a cause and a consequence of climate change, contributing to a vicious circle?See the answer
  4. What is the effect of climate change on the oceans?See the answer
  5. What human activity contributes the most to greenhouse gas emissions?See the answer
  6. What consequence of climate change directly affects freshwater resources?See the answer
  7. What natural process is crucial for capturing CO2 from the atmosphere?See the answer
  8. Which region is warming several times faster than the global average because of polar amplification?See the answer
  9. Which greenhouse gas emitted by human activities is the largest contributor to current global warming?See the answer

The Fascinating World of Flowers

  1. Which flower is represented by the fleur-de-lis, historically associated with French royalty?See the answer
  2. Which flower is one of Japan’s best-known floral symbols and is the subject of hanami?See the answer
  3. Which young flowering plant tracks the Sun across the sky through heliotropism?See the answer
  4. Which flower’s common English name explicitly evokes remembrance?See the answer
  5. What is the name of the largest flower in the world?See the answer
  6. Which plant from the Namib Desert can live for more than a millennium?See the answer
  7. Which flower is most conventionally exchanged as a symbol of romantic love on Valentine’s Day?See the answer

Renewable Energies

  1. What innovative process do some cities use to transform wastewater into renewable energy?See the answer
  2. What unique ability do some plants used in bioenergy have to restore degraded lands?See the answer
  3. What is the main goal of the energy transition?See the answer
  4. What challenge is associated with wind energy?See the answer
  5. Which energy technology uses the Earth’s internal heat?See the answer
  6. Which source provides the largest share of the world’s renewable electricity?See the answer
  7. Which building solution can generate electricity while also supporting vegetation and urban biodiversity?See the answer

Extreme Weather Phenomena

  1. How are tornadoes primarily detected?See the answer
  2. What weather phenomenon is often a consequence of strong hurricanes?See the answer
  3. What is the main impact of hurricanes on the coastal environment?See the answer
  4. What scale is used to classify the intensity of hurricanes?See the answer
  5. What is the name given to hurricanes in the Indian Ocean?See the answer
  6. What scale measures the intensity of tornadoes?See the answer

The Stars and the Sky

  1. Which “star” is actually a planet, often visible to the naked eye from Earth?See the answer
  2. What is the closest large galaxy to the Milky Way?See the answer
  3. What is the closest star to Earth?See the answer
  4. Which constellation contains the three stars known as “The Three Kings”?See the answer
  5. What is a rapidly rotating neutron star whose radiation beams produce regular pulses called?See the answer

The Mysteries of Fungi

  1. Which mushroom is famous for its funnel shape and slightly peppery taste, highly sought after in cooking?See the answer
  2. Which red-and-white-spotted mushroom can form rings through its mycorrhizal association with trees?See the answer
  3. Which mushroom is famous for its rapid growth and ability to decompose plastics?See the answer
  4. Which mushroom is considered a delicate delicacy and very expensive?See the answer
  5. Which mushroom is reputed to be the largest living organism on Earth?See the answer
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