83042 Easy Trivia Questions
83042 public questions at this depth. How many can you answer?
What medical technique uses the Doppler effect to image blood flow?
Answer
Doppler ultrasound
Who discovered the Doppler effect?
Answer
Christian Doppler
What phenomenon causes a siren's pitch to change as it passes?
Answer
Doppler effect
Which U.S. government agency, besides NIH, co-funded the Human Genome Project?
Answer
Department of Energy
On what date was the Human Genome Project declared complete?
Answer
April 14, 2003
Who was the director of the National Human Genome Research Institute during the HGP?
Answer
Francis Collins
What is the approximate size of the human genome in base pairs?
Answer
3 billion
What sequencing method did the Human Genome Project primarily use?
Answer
Sanger sequencing
Which country led the international Human Genome Project?
Answer
United States
Which gas is the primary greenhouse gas in the atmosphere of Mars?
Answer
Carbon dioxide
What is the most abundant natural greenhouse gas in Earth's atmosphere?
Answer
Water vapor
Which French mathematician first described the greenhouse effect in 1824?
Answer
Joseph Fourier
What is the term for the gradual increase in Earth's average temperature?
Answer
Global warming
Which greenhouse gas is released from agricultural fertilizers?
Answer
Nitrous oxide
What is the name of the international climate treaty adopted in 1997?
Answer
Kyoto Protocol
What is the primary greenhouse gas released from the burning of fossil fuels?
Answer
Carbon dioxide
What natural process removes carbon dioxide from the atmosphere through plant growth?
Answer
Photosynthesis
Which greenhouse gas is released when forests are cleared and burned?
Answer
Carbon dioxide
What is the main source of carbon dioxide emissions from human activity?
Answer
Burning fossil fuels
Which gas is measured by the Keeling Curve?
Answer
Carbon dioxide
What phenomenon causes Earth's surface to be warmer than it would be without an atmosphere?
Answer
Greenhouse effect
Which greenhouse gas is commonly produced by cattle?
Answer
Methane
What is the most abundant human-emitted greenhouse gas?
Answer
Carbon dioxide
In scientific experiments, what is the term for the variable that is measured as the outcome?
Answer
dependent variable
What is the principle that the simplest explanation is usually the best?
Answer
Occam's razor
What is the term for repeating an experiment to verify results?
Answer
Replication
Which American scientist proved lightning is electricity with a kite experiment in 1752?
Answer
Benjamin Franklin
What is the term for the variable that is changed by the experimenter?
Answer
Independent variable
Which Polish astronomer proposed the heliocentric model of the solar system?
Answer
Nicolaus Copernicus
Which English naturalist co-discovered natural selection alongside Charles Darwin?
Answer
Alfred Russel Wallace
Which Dutch naturalist improved the microscope and first observed bacteria?
Answer
Antonie van Leeuwenhoek
Which German mathematician formulated the three laws of planetary motion?
Answer
Johannes Kepler