Hello, could you please try to help me with this exercice? i am little bit confused...

Species of wood - Density (g/cm3)

Cedar - 0.40

Chestnut - 0.86

Buis - 0.90

Sea pine - 0.55

Pine - 0.90

1) A wooden cube of 6.2 cm of ridge has a mass of about 205 g.

Is the wood used to make it pine or chestnut?

2) A cube with a whole number of centimetres on the side, made in

wood of a single species, has a mass of 68.75 g.

Determine the species of wood used in its manufacture and the length of the wood the edge of the cube.

could you please explain it step by step, i do not speak english fluently, thank you so much.