16373 Hard Trivia Questions
16373 public questions at this depth. How many can you answer?
What date in 1883 did the Krakatoa tsunami occur?
Answer
August 27, 1883
Which plant is the source of the cardiac drug digitalis?
Answer
Foxglove
What is the name of the largest seed in the plant kingdom?
Answer
Coco de mer
Which genus contains the Venus flytrap, a carnivorous plant?
Answer
Dionaea
Which plant hormone is responsible for fruit ripening?
Answer
Ethylene
What is the name of the growth response of plants towards a light source?
Answer
Phototropism
What is the name of the historically significant rose in Germany that may be over 1,000 years old?
Answer
Rose of Hildesheim
Which university developed the Honeycrisp apple variety?
Answer
University of Minnesota
Which UNESCO World Heritage Site is a tropical botanical garden in Singapore?
Answer
Singapore Botanic Gardens
What pumpkin variety holds the record for the heaviest fruit?
Answer
Atlantic Giant
What is the scientific name for the bacterium used to genetically engineer plants?
Answer
Agrobacterium tumefaciens
Which scientist pioneered the use of hydroponics in the early 20th century?
Answer
William Frederick Gericke
What is the name of the world's hottest chili pepper as of 2023?
Answer
Pepper X
Which plant produces the world's largest seed, weighing up to 30 kg?
Answer
Coco de mer
What is the oldest botanical garden in the world, founded in 1545?
Answer
Orto Botanico di Padova
What is the name of the scale used in Europe to classify tornado intensity?
Answer
TORRO scale
What is the only continent that has never had a confirmed tornado?
Answer
Antarctica
Which California fault produced the 1872 Owens Valley earthquake, one of the largest in state history?
Answer
Owens Valley fault
What is the name of the fault line expected to produce a major earthquake near Istanbul?
Answer
North Anatolian Fault
Which earthquake in 1975 was successfully predicted, allowing an evacuation that saved thousands?
Answer
1975 Haicheng earthquake
What is the name of the deadliest earthquake in history?
Answer
1556 Shaanxi earthquake
What is the name of the research station on Heron Island in the Great Barrier Reef?
Answer
Heron Island Research Station
What coral disease creates a bright white ring of exposed skeleton, often fatal?
Answer
White plague disease
What is the largest atoll in the world by total area?
Answer
Great Chagos Bank
What highly contagious disease has devastated Caribbean coral reefs since 2014?
Answer
Stony coral tissue loss disease
What species is the world's largest known coral colony, discovered in 2024?
Answer
Pavona clavus