(1) Environment. (i) A clean physical environment with the help of public health services. (ii) A congenial social environment. (2) Personal hygiene. Personal cleanliness prevents catching up of infectious diseases. (3) Nourishment. Intake of a proper balanced diet keeps the immune system strong. (4Read more
(1) Environment. (i) A clean physical environment with the help of public health services. (ii) A congenial social environment.
(2) Personal hygiene. Personal cleanliness prevents catching up of infectious diseases.
(3) Nourishment. Intake of a proper balanced diet keeps the immune system strong.
(4) Vaccination. -Timely vaccination against major disease (e.g., polio, T.B., chicken pox, etc.) protects one self from catching those diseases.
Disease (Old French disease = lack of ease) is a disorder in a human, Animal for plant caused by infection, diet or by faulty functions of a process. Types of disease. (i) on the basis of duration. Acute or chronic diseases. (ii) on the basis of period of occurrence. Congenital and acquired diseasesRead more
Disease (Old French disease = lack of ease) is a disorder in a human, Animal for plant caused by infection,
diet or by faulty functions of a process.
Types of disease. (i) on the basis of duration. Acute or chronic diseases.
(ii) on the basis of period of occurrence. Congenital and acquired diseases.
(iii) On the basis of causal agents. Infectious and non-infectious. Infectious or communicable diseases can be
contagious or non-contagious. Non-infectious disease may be deficiency disease, metabolic disease,
degenerative disease, allergy, cancer and injury.
Example of infectious disease. Influenza, tuberculosis, pneumonia.
Example of non-infectious disease. Cancer, diabetes.
Give any four factors necessary for a healthy person.
(1) Environment. (i) A clean physical environment with the help of public health services. (ii) A congenial social environment. (2) Personal hygiene. Personal cleanliness prevents catching up of infectious diseases. (3) Nourishment. Intake of a proper balanced diet keeps the immune system strong. (4Read more
(1) Environment. (i) A clean physical environment with the help of public health services. (ii) A congenial social environment.
See less(2) Personal hygiene. Personal cleanliness prevents catching up of infectious diseases.
(3) Nourishment. Intake of a proper balanced diet keeps the immune system strong.
(4) Vaccination. -Timely vaccination against major disease (e.g., polio, T.B., chicken pox, etc.) protects one self from catching those diseases.
What is disease? How many types of diseases have you studied? Give Example
Disease (Old French disease = lack of ease) is a disorder in a human, Animal for plant caused by infection, diet or by faulty functions of a process. Types of disease. (i) on the basis of duration. Acute or chronic diseases. (ii) on the basis of period of occurrence. Congenital and acquired diseasesRead more
Disease (Old French disease = lack of ease) is a disorder in a human, Animal for plant caused by infection,
See lessdiet or by faulty functions of a process.
Types of disease. (i) on the basis of duration. Acute or chronic diseases.
(ii) on the basis of period of occurrence. Congenital and acquired diseases.
(iii) On the basis of causal agents. Infectious and non-infectious. Infectious or communicable diseases can be
contagious or non-contagious. Non-infectious disease may be deficiency disease, metabolic disease,
degenerative disease, allergy, cancer and injury.
Example of infectious disease. Influenza, tuberculosis, pneumonia.
Example of non-infectious disease. Cancer, diabetes.
You are given water, mustard oil, glycerine and kerosene. In which of these media a ray of light incident obliquely at same angle would bend the most?
(d) Glycerine
(d) Glycerine
See lessThe laws of reflection hold good for
(d) all mirrors irrespective of their shape
(d) all mirrors irrespective of their shape
See lessIn torches, search lights and headlights of vehicles the bulb is placed
(b) very near to the focus of the reflector
(b) very near to the focus of the reflector
See less