Write the similarities and differences between contact force and field force.

(N/A) Similarity: Both contact force and field force are mutual interactions between two bodies,meaning they always occur in pairs as per Newton's $3^{rd}$ law.
Differences:
$(i)$ Contact force requires physical contact between two bodies (e.g.,friction,normal force),whereas field force acts at a distance without physical contact (e.g.,gravitational,electrostatic,or magnetic force).
$(ii)$ Field forces (like gravitational and electrostatic forces) are generally conservative forces,whereas contact forces (like friction and air resistance) are typically non-conservative forces.