Ocean-dwelling (marine) iguanas and land iguanas inhabit the galapagos islands. some
scientists believe that both types of iguanas diverged from a common ancestor. marine
iguanas eat algae. land iguanas feed on cacti. algae are more abundant in the ocean than
cacti are on the islands. both species lay their eggs in the sand.
rats, cats, and goats have been introduced to the islands by humans. rats feed on
iguana eggs, cats eat baby iguanas, and goats eat cacti.

which population of iguanas, marine or land, would you expect to be larger? support your answer.
population of iguana:

the index of refraction of the second medium is higher. i just took the test trust me !

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.