At one time, many scientists and philosophers believed earth was the center of the universe and all other planets and the sun revolved around it. to the invention of the new data was collected disprove this idea.
a) telescope
eliminate
b) microscope
c) stethoscope
d) oscilloscope

it’s lava came from an explosive eruption

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.