What does it mean to what does it mean to characterize a nebula as diffuse? (1 point) O It reflects only visible radiation.
O It reflects only non-visible radiation.
O Its edges have clear boundaries.
O Its edges do not have clear boundaries.

there is no

explanation:

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.