Question

which would most likely form a homogeneous mixture?
10 marbles mixed with 10 small balls
a pinch of sugar mixed with a cup of water
a pile of big rocks mixed with a bag of sand
1 cup of peas mixed with 1 cup of carrots

Explanation:

A homogeneous mixture has a uniform composition throughout. Sugar dissolves in water to form a solution where the sugar molecules are evenly distributed at a molecular - level, creating a uniform mixture. Marbles and small balls, big rocks and sand, peas and carrots are all heterogeneous mixtures as the components can be visually distinguished and are not uniformly distributed at a molecular level.

Answer:

a pinch of sugar mixed with a cup of water