Which vitamin deficiency causes rickets in children?

Malaria is caused by:

Which organ is mainly affected by Hepatitis?

Which of the following diseases is prevented by vaccination?

What is the main method to prevent tooth decay?

Which disease is caused by a deficiency of iodine?

Dengue is spread by which mosquito?

Which of these is a communicable disease?

Which food is rich in Vitamin C and helps prevent scurvy?

To prevent COVID-19, which of these practices is correct?