Friction is not present in ?

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Radioactivity was discovered by __________?

A. Kelvin B. Thomson C. Rutherford D. Bacquerel...

The good sources of Vitamin-C are________?

green leafy vegetables seeds fresh vegetables and fruits sea foods...

Spring tides occur on new moon and full moon days because on these days_____________?

A. Sun, moon and earth are in a straight line B. Sun and earth are at right angles C. Sun and moon are at right angles D. Earth and moon are at right angles...

The muscles, tissues and blood all are made up of____________?

A. Carbohydrate B. Proteins C. Vitamins D. Fats...

The chief ingredient of the mosquito repellent cream is derived from ?

A: Lemon B: Neem tree C: Rice bran D: Tulsi...