What is the unit for measuring the amplitude of a sound?
A). Decibel
B). Coulomb
C). Hum
D). Cycles
1. What is colour of light related to?
2. The natural resource known as black gold is
3. Vehicle tyres are inflated properly
4. Plaster of Paris is made by partial dehydration of
5. It is dangerous to observe Solar eclipse with naked eyes because
6. Name two elements that find wide application in transistor industry
7. Biologists who study the sequences of organisms in the fossil record are
8. Generally the food chain has how many trophic levels?
9. In a nuclear reactor one of the following is used as a fuel