Question

which of the following is a homogenous mixture?
○ blood
○ steel
○ cloud
○ muddy water

Explanation:

A homogeneous mixture has a uniform composition throughout. Blood is a heterogeneous mixture (contains cells, plasma, etc. with non - uniform distribution). A cloud is a heterogeneous mixture (water droplets or ice crystals in air, non - uniform). Muddy water is heterogeneous (mud particles suspended in water, non - uniform). Steel is an alloy (mixture of iron and other elements like carbon) with a uniform composition at the microscopic level, so it is a homogeneous mixture.

Answer:

B. steel