Solid at room temperature
Answer: 
Explanation:
We know that force acting on an object due to Earth's gravity on the surface is given by:

where g is the acceleration due to gravity, r would be radius of Earth, M is the mass of Earth and G is the gravitational constant.
It is given that at pole, g = 9.830 m/s² and r = 6371 km = 6371 × 10³ m



Hence, Earth's mass is 
Answer:
1.23453*10^5 is scientific way
For every reaction, there is an equal and opposite reaction. This means that with every interaction, theres a pair of opposite forces on the object.