Answer: Option (d) is the correct answer.
Explanation:
A homogeneous mixture that contains two or more substances is known as a solution.
A compound is a substance that contains two or more different atoms. For example, NaCl is a compound.
A homogeneous mixture is a mixture whose particles are evenly or equally distributed throughout the mixture. For example, salt dissolved in water is a homogeneous mixture.
A suspension is a mixture in which particles are not evenly distributed throughout the mixture. It is also called a heterogenous mixture and after a certain interval some particles in a suspension mixture settles down at the bottom.
A colloid is a mixture that contains particles which are microscopically dispersed evenly throughout the solvent.
Thus, dirt particles in water will settle at the bottom after a certain interval of time.
Hence, we can conclude that because the silt (dirt particles) in muddy water eventually settles out, the muddy water is a suspension.
