Balbharati Class 5 Environmental Studies Part 1 Solutions Chapter 23 Infectious Diseases and how to Prevent them
Welcome to NCTB Solutions. Here with this post we are going to help Maharashtra State board 5th class students by providing Balbharati Class 5 Environmental Studies Part 1 Solutions for Chapter 23, Infectious Diseases and how to Prevent them. Here students can easily find all the answers for the questions in Infectious Diseases and how to Prevent them. Also our Expert Environmental Studies Teacher’s solved all the question answer with easily understandable language with proper guidance so that all the students can understand easily. Here on this post students will get chapter 23 Infectious Diseases and how to Prevent them solutions. Here all the Question Answer are based on Balbharati latest syllabus. Here all the question and answer are based on Maharashtra State Board latest syllabus.
Infectious Diseases and how to Prevent them Exercise question Solutions :
Question no – (1)
Answer :
Developing healthy food habits is the basic manner of maintaining hygiene. The food that is not covered, may be contaminated with dust and insects. Uncovered food may contain many micro-organisms. So, it is preferable to avoid eating such foods. Instead, we can eat packed foods such as biscuits, if we are extremely hungry. Eating this kind of food that is left uncovered may have detrimental effect on our health. In this situation, I will try to control myself to avoid eating these foods that has been left uncovered.
Question no – (2)
Answer :
Mosquitoes mainly breed in the stagnant water. Diseases like malaria, dengue, yellow fever and chikungunya are transmitted by mosquitoes. So I will not allow water to stagnate in my surroundings. Insecticides can be used in order to destroy mosquitoes but it will make the air toxic and poisonous .Pesticides or Insecticides possess the ability to stay for a longer period of time in the environment, thus causing harmful effects to the environment. So, inspite of spraying insecticides, it is always preferable to not allow water to stagnate in our surroundings which will prevent infectious diseases caused by mosquitoes.
Question no – (3)
Answer :
(a) Infectious disease :
Infectious disease refers to those disease that are caused by microbial organisms such as viruses or germs. The person may get the disease, if the virus of a particular disease enter into the body of that person and other people can also catch the disease, if these germs enters into their body. So, some infectious diseases are transmitted from one person to another person.
(b) Following are the mediums of the spread of diseases
- Infectious diseases can be spread through air :
The person who is suffering from influenza, contains germs in their saliva, so when that person coughs or sneezes, these germs enters the air by the means of saliva and the germs enter the body of another person when they breathe in that similar air.
- Diseases can be spread through water:
Typhoid, cholera, jaundice and diarrhoea are the germs of diseases of the intestines, that are present in the excreta of the infected person. The germs in it enters the water, if the bodily waste matter gets mixed with water. If these contaminated water are drank by another person then the germs enter into his intestine, thus causing infectious disease.
- Diseases can be spread through food :
When people eat contaminated food at any occasions, they may suffer from ‘gastro’ or diarrhoea, so infectious diseases can be spread through food as well.
- Diseases can be spread through insects :
Diseases such as malaria and typhoid are transmitted by mosquitoes.
- Diseases can be spread through direct contact :
Skin disease can be caused through direct contact with the contaminated clothes or by touching the skin of the person who is suffering from this disease.
(c) There is an epidemic of the disease, when large number of people from one particular area suffers from same infectious disease at the same period of time. These infectious diseases spreads rapidly through air. So, many people may become ill at the same time. If the water get’s contaminated with germs, then it poses high risk for all those person who drinks it and thus, this water may have detrimental effect on their health. In some cases many people may also suffer from malaria, if hordes of mosquitoes breed in stagnant water.
(d) Vaccination :
Vaccination plays a significant role in preventing the disease. If we are vaccinated against any particular disease then our body develops the resistance power which is essential to combat any particular disease by destroying the bacteria causing disease. The vaccination dosage are applied at a particular age and at certain interval.
(e) The list of vaccinations that are given to a newborn baby are as follows
- Bacilline Calmette – Guerin (BCG) is a vaccine that is mostly used for the prevention of tuberculosis.
- Triple vaccine or DTP is a vaccine that are primarily used against three infectious diseases such as Diphtheria , Tetanus and Pertussis.
- Polio vaccines are vaccines that are mainly used in order to prevent polio.
Question no – (4)
Answer :
(a) Intestinal diseases spread through air.
This statement is False.
Reason : Intestinal diseases does not spread through air.
(b) Some diseases are caused by the anger of the gods
This statement is False.
Question no – (5)
Answer :
Diseases spread through food : Diarrhoea, gastro ,cholera, typhoid, jaundice.
Diseases spread through water : Typhoid, cholera ,diarrhoea, jaundice.
Diseases spread through air : Tuberculosis, diphtheria.
Question no – (6)
Answer :
(a) Germs of diseases such as cholera spreads through the excreta of an infected person. The water get’s contaminated when this passes into the water or food. Such contaminated water poses great danger for all those person who drinks it and thus, this water may have detrimental effect on their health. Thus, it is better to boil the water during an epidemic of cholera. Boiling kills the germs in the water, thus making it safe for us to drink. So, keeping in mind the safety of our health, we should drink boiled water.
(b) Mosquitoes mostly breed in stagnant water. So, we should not allow puddles of water to stand in our surroundings, because it may act as a breeding ground for mosquitoes. Disease such as malaria, typhoid and dengue are transmitted through mosquitoes. If there are large number of mosquitoes, then epidemic of such diseases will spread in a rapid manner. Thus, in order to control the infectious diseases, it is essential to get rid of the mosquitoes. So, we should not recommend pools of water to stagnate in and around our surroundings.
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