3 Questions
Which of the following is an example of an exothermic reaction?
Burning of wood
What is the function of an anemometer?
Measuring wind speed
What is the most abundant gas in the Earth's atmosphere?
Nitrogen
Study Notes
Chemistry
- An example of an exothermic reaction is a combustion reaction, where heat is released into the surroundings.
Meteorology
- An anemometer is a device that measures wind speed and direction.
Earth's Atmosphere
- The most abundant gas in the Earth's atmosphere is nitrogen (N2), making up approximately 78% of the atmosphere.
Test your knowledge of Class 9 Science Chapter 1 with this multiple-choice quiz. Questions cover topics such as exothermic reactions, the function of an anemometer, and the most abundant gas in Earth's atmosphere.
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