The amount of light entering the eye is controlled by the Iris. This colored muscular structure behind the cornea regulates the size of the pupil, adjusting its diameter in response to varying light conditions to optimize visual perception.
Category: Class 10 Science
NCERT Solutions for Class 10 Science and important questions for CBSE class 10 for session 2020-2021
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White pleurisy was found Among the employees of cement industry. It is associated with exposure to cement dust, leading to inflammation of the pleura, the membrane lining the lungs and chest cavity. This condition is a recognized occupational hazard among ...
The inventor of the vaccine for smallpox is Edward Jenner. In 1796, Jenner developed the smallpox vaccine, using material from cowpox lesions to inoculate individuals against smallpox, marking a milestone in the history of immunization.
The carrier of Kala-azar is Anopheles mosquito. It transmits the parasitic protozoa Leishmania donovani, which causes the disease. Kala-azar, also known as visceral leishmaniasis, is transmitted to humans through the bite of infected Anopheles mosquitoes.
Cadmium pollution is associated with Itai Itai disease. It emerged in Japan due to cadmium contamination from industrial sources, causing severe bone pain and skeletal deformities. Minamata disease is linked to mercury poisoning, while Black foot disease and Dyslexia have ...