CBSE Class 9 Answered
Give reasons:
a. Majority of children in many
parts of India are already immune to Hepatitis A.
b. Chronic diseases cause more harm
to the body than acute diseases.
c. Balanced diet is necessary for
maintaining healthy body.
d. Social harmony and good economic
conditions are necessary for good health.
e. Infectious diseases are called
communicable diseases.
Asked by Topperlearning User | 30 Sep, 2016, 02:12: PM
Expert Answer
- Majority of children in India are exposed to Hepatitis A virus through water and thereby the body develops immunity against the virus.
- Chronic diseases last for a long time, even as much as a life and hence cause more harm to the body.
- Balanced diet provides energy in appropriate amount which is needed for the substances such as carbohydrates, protein, fats which are essential for proper growth and functioning of the healthy body.
- Human beings live in societies and different localities like villages or cities which determines the social and physical environment. Hence, both are to be kept in harmony. Public cleanliness is important for individual health. We need good food for healthy body for better living conditions and for the treatment of diseases.
- Infectious diseases are caused by microbes. Microbes can spread in the community and thereby spread the disease. Infectious diseases are hence called communicable diseases.
Answered by | 30 Sep, 2016, 04:12: PM
Application Videos
-
Immunisation ...
This video explains the principle of immunisation.
Concept Videos
-
Diseases and Illness
Explain the symptoms of various common infectious human diseases. The prin... -
Diseases and Illness
Explain the symptoms of various common infectious human diseases. The prin... -
Diseases and Illness
Explain the symptoms of various common infectious human diseases. The prin...
CBSE 9 - Biology
Asked by princemodi2580 | 18 Nov, 2021, 10:31: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by abhimanyu4470 | 29 Dec, 2020, 07:15: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by ssatyaprakasharya485 | 06 Sep, 2020, 10:47: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by vinodsy105 | 08 Aug, 2020, 05:50: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by dhyeyvachani26.tl | 14 Apr, 2020, 03:05: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by shivajihake1970 | 07 Apr, 2020, 12:02: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by madhusahu642 | 15 Feb, 2020, 11:29: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by alokgang8 | 17 Dec, 2019, 01:41: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by brajmohan6958 | 20 Nov, 2019, 07:11: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by sanasaifct | 04 Nov, 2019, 08:40: PM
ANSWERED BY EXPERT
