What is the classification of most stars on the h-r diagram?

The correct answer is main sequence stars.

Explanation:

The H-R diagram refers to the graphical apparatus, which are used by the astronomers to categorize stars on the basis of their spectral type, luminosity, stage of evolution, color, and temperature. The classification of the majority of the stars on the H-R diagram is the main sequence stars.  

Approximately 90 % of the stars found in the universe, comprising the Sun refers to the main sequence stars. These stars can vary from about the tenth of the Sun's mass to about 200 times.  

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

the contamination

we are putting to many trash.