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Questions and Answers
Which of the following is an example of an exothermic reaction?
Which of the following is an example of an exothermic reaction?
- Melting of ice
- Cooking an egg
- Burning of wood (correct)
- Photosynthesis
What is the function of an anemometer?
What is the function of an anemometer?
- Measuring water pressure
- Measuring humidity
- Measuring wind speed (correct)
- Measuring soil fertility
What is the most abundant gas in the Earth's atmosphere?
What is the most abundant gas in the Earth's atmosphere?
- Carbon dioxide
- Argon
- Nitrogen (correct)
- Oxygen
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.
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Description
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.
