In 2004, NASA launched the Messenger Spacecraft to study ___.
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The mass per unit volume is called
When the car takes a bend, the force that pushes us to the outside of the curve is the
On which date is India likely to experience the shortest day?
Name the hottest planet.
The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?
When was Guru Nanak Dev born?
If tan (5x - 10°) = cot (5y + 20°), then the value of x + y is