Choose any five questions:
1] What are the sources of chemical energy?
2] Differentiate between renewable and
non-renewable sources of energy.
3] How do the sound energy produced?
4] List out the some scientific instruments that
measure the weather with their work/function.
5] What are the types of four clouds?
6] How are clouds formed? Explain.
7] What are the types of health services?
8] Mention some of the examples of curative
health services.
9] Describe water cycle with figure.
10] Differentiate between mantle and inner core.
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Answers
1] What are the sources of chemical energy?
=> wood , col and gasoline.
3] How do the sound energy produced?
=> Sound energy is produced when an object vibrates. The sound vibrations cause waves of pressure that travel through a medium, such as air, water, wood or metal. Sound energy is a form of mechanical energy.
4] List out the some scientific instruments that
measure the weather with their work/function.
=> Weather instruments
Thermometer for measuring air and sea surface temperature. Barometer for measuring atmospheric pressure. Hygrometer for measuring humidity. Anemometer for measuring wind speed.
5] What are the types of four clouds?
=>The different types of clouds are
- cumulus
- cirrus
- stratus
- nimbus.
6] How are clouds formed? Explain.
=>Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air. You hang up a wet towel and, when you come back, it's dry. These energetic molecules then escape from the liquid water in the form of gas.