Few days back, our school organised health checkup camp. Eminent doctors (General physicians, opthalmologists, dentist,etc). Doctor X leader of the doctor's team, gave us tips about essential conditions of keeping good health extrinsic and intrinsic causes of disease as well as types of diseases. Enter students of the school were examined by the doctors. Next day our class teacher asked us to anwer to the following questions:
(i) List atleast three conditions essential for good health.
(ii) How can we keep our surroundings clean?
Mention at least two ways.
(iii) How would you define a diseases?

Explanation

(i) Three conditions essential for good health are:
(a) Better sanitation
(b) Availability of clean drinking water.
(c) Availability of adequate, nutritious food.
(ii) We can keep out surrounding clean by:
(a) providing good sewage and rain water disposal systems.
(b) proper garbage disposal (to manage plastic articles: polythene bags, plastic bottles, etc.
(iii) Disease can be defined as physical or functional change from the normal state that cause discomfort, or disability or impairs health of a living organism.