Heat from the Sun reaches the Earth by
1). Reflection
2). Conduction
3). Radiation
4). Convection
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2. Ice cubes are added to a glass of pure water and a glass of pure alcohol. The ice would be
3. What will happen if an object is dropped from a height and there is no air resistance?
5. Which among the following is false about alpha particles?
6. Depth of ocean is measured by
7. What is the other name of Galileo's law of falling bodies?