Give two possible reasons for defect of the eye in human beings.

Given below is a diagram depicting a defect of the human eye. Study the same and then answer the questions that follow: Name two possible reasons for this defect of the eye in human beings.

Human beings are

Human beings are

Human beings are

Human beings are

Length of kidney in human being is

Name some other defects of eye.

Dental formula in human beings is

Dental formula in human beings is

Dental formula in human beings is