Population is the factor used.
population
In respect to American government, the sole factor in determining the number of representatives that each state is entitled to have in the House of Representatives is the population of each state in question. While each state is entitled to at least one representative in the House, additional representatives are allotted based on the census-counts of state-populations, with the total number of representatives fixed at 435 in total.
Mass is a major factor.
population
the state of visibility
Abiotic factor.
Yes it is a factor.
can color be a denitive factor in determinig a mineral
The age of the material.
The primary determing factor would be the size of the substance
... mass.
They were determining the unknown factor.