Students can practice the best Class 8 Science MCQ and Health The Ultimate Treasure Class 8 Science Curiosity Chapter 3 MCQ Online Test with Answers for exam preparation.
Class 8 Science Chapter 3 Health The Ultimate Treasure MCQ
Health The Ultimate Treasure MCQ
Class 8 Science Chapter 3 MCQ Online Test
Question 1.
Which international organisation defined health as a complete state of physical, mental, and social well-being?
(a) WHO
(b) UNICEF
(c) UNDP
(d) UNESCO
Answer:
(a) WHO
Question 2.
Which one of these is a healthy habit that improves both body and mind?
(a) Skipping meals
(b) Eating junk food
(c) Doing regular exercise
(d) Staying up all night
Answer:
(c) Doing regular exercise
Question 3.
What habit best helps prevent communicable diseases?
(a) Sharing bottles
(b) Wearing clean clothes
(c) Sharing towels
(d) Drinking fizzy drinks
Answer:
(b) Wearing clean clothes
Question 4.
The Air Quality Index (AQI) helps us to know (Competency Based Que.)
(a) level of rainfall
(b) how clean the air is
(c) nutritional value of food
(d) level of germs in water
Answer:
(b) how clean the air is
Question 5.
Which of the following is a symptom of a disease?
(a) High body temperature
(b) Doctor’s diagnosis
(c) Headache
(d) Positive test result
Answer:
(a) High body temperature
Question 6.
Which of these diseases is an acute disease?
(a) Diabetes
(b) Cancer
(c) Common cold
(d) Tuberculosis
Answer:
(c) Common cold
Question 7.
Which of these lasts a long time and may cause permanent damage?
(a) Acute disease
(b) Chronic disease
(c) Deficiency disease
(d) Viral fever
Answer:
(b) Chronic disease
Question 8.
Which of these is a communicable disease?
(a) Scurvy
(b) Dengue
(c) Obesity
(d) Cancer
Answer:
(b) Dengue
Question 9.
Which organism can spread diseases and is called a vector?
(a) Butterfly
(b) Mosquito
(c) Earthworm
(d) Honeybee
Answer:
(b) Mosquito
Question 10.
Which two diseases among the following are mainly spread through air?
(a) Dengue and diarrhoea
(b) Tuberculosis and measles
(c) Malaria and typhoid
(d) Typhoid and diarrhoea
Answer:
(b) Tuberculosis and measles
Question 11.
Hepatitis-A infection primarily spreads through which of the following ways, and what is the best preventive measure? (Competency Based Que.)
(a) Airborne droplets; use of face masks
(b) Contaminated food and water; maintaining personal and community hygiene
(c) Mosquito bites; using mosquito nets
(d) Direct contact with blood; avoiding blood transfusions
Answer:
(b) Contaminated food and water; maintaining personal and community hygiene
Question 12.
Which method is best for preventing diseases like diarrhoea and typhoid?
(a) Avoiding milk
(b) Drinking contaminated water
(c) Eating packaged food only
(d) Drinking clean and boiled water
Answer:
(d) Drinking clean and boiled water
Question 13.
Which of the following is a risk factor for non-communicable diseases?
(a) Vaccination
(b) Playing outdoor games
(c) Unhealthy diet and lack of exercise
(d) Drinking clean water
Answer:
(c) Unhealthy diet and lack of exercise
Question 14.
How does vaccination protect the body from diseases?
(a) It kills all germs inside the body
(b) It blocks germs from entering
(c) It prepares the body’s defence system to fight germs in future
(d) It cools the body during fever
Answer:
(c) It prepares the body’s defence system to fight germs in future
Question 15.
Antibiotic resistance develops when bacteria survive antibiotic treatment. Which of the following practices can contribute to antibiotic resistance? (Competency Based Que.)
(a) Completing the full prescribed course of antibiotics
(b) Using antibiotics only when prescribed by a doctor
(c) Stopping antibiotics midway once symptoms improve
(d) Practicing good hygiene to prevent infections
Answer:
(c) Stopping antibiotics midway once symptoms improve
Question 16.
A person stops taking antibiotics midway after feeling better. What can this lead to?
(a) Faster recovery
(b) Antibiotic resistance
(c) Allergy
(d) Permanent cure
Answer:
(b) Antibiotic resistance
Question 17.
Why should leftover antibiotics not be used?
(a) They lose taste
(b) They are expensive
(c) They may lead to antibiotic resistance
(d) They are only for children
Answer:
(c) They may lead to antibiotic resistance
Question 18.
Which of the following is a communicable disease?
(a) Cancer
(b) Diabetes
(c) Tuberculosis
(d) Hypertension
Answer:
(c) Tuberculosis
Question 19.
How do pathogens commonly spread?
(a) Only through food
(b) Through contact, air, water, or vectors
(c) Through exercise
(d) By taking medicine
Answer:
(b) Through contact, air, water, or vectors
Question 20.
Which of the following is not a preventive measure for communicable diseases?
(a) Vaccination
(b) Balanced diet
(c) Isolation of infected individuals
(d) Proper sanitation
Answer:
(b) Balanced diet
Question 21.
A person with high fever, body pain and rashes is likely suffering from
(a) malaria
(b) dengue
(c) common cold
(d) anaemia
Answer:
(b) dengue
Question 22.
Which one of the following helps build immunity against diseases?
(a) Antibiotics
(b) Cold drinks
(c) Vaccines
(d) Junk food
Answer:
(c) Vaccines
Health The Ultimate Treasure Class 8 Assertion Reason Questions
The following questions consist of two statements;
Assertion (A) and Reason (R). Answer the following questions by selecting the appropriate option given below.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true, but R is not the correct explanation of A
(c) A is true, but R is false
(d) A is false, but R is true
Question 1.
Assertion (A) Dirty and uncovered food can cause diseases in humans.
Reason (R) Flies sitting on dirty things carry germs and leave them on food.
Answer:
(a) Both A and R are true and R is the correct explanation of A
Question 2.
Assertion (A) Tuberculosis is a communicable disease.
Reason (R) Tuberculosis spreads through air when an infected person coughs or sneezes.
Answer:
(a) Both A and R are true and R is the correct explanation of A
Question 3.
Assertion (A) Diseases like malaria and dengue are common during the rainy season.
Reason (R) Rainwater often collects in open containers, leading to prevent mosquito breeding.
Answer:
(c) A is true, but R is false
Question 4.
Assertion (A) High blood pressure and diabetes are communicable diseases.
Reason (R) Diabetes do not spread from person to person.
Answer:
(d) A is false, but R is true. A can be corrected as Diabetes and hight blood pressure do not spread from person to person, so they are non-communicable diseases.
Question 5.
Assertion (A) Vaccination protects children from serious diseases like measles.
Reason (R) Vaccines prepare the body to fight diseases before they infect US. (Competency Based Que.)
Answer:
(a) Both A and R are true and R is the correct explanation of A
Question 6.
Assertion (A) Vaccines prevent diseases.
Reason (R) They contain medicines that kill pathogens directly.
Answer:
(c) A is true, but R is false
Question 7.
Assertion (A) Personal hygiene is important in preventing infectious diseases.
Reason (R) Cleanliness reduces the chances of contact with pathogens
Answer:
(a) Both A and R are true and R is the correct explanation of A
Health The Ultimate Treasure Class 8 Case Based MCQ Questions
Question 1.
After days of continuous rain, people in a village began experiencing high fever and fatigue. On inspection, health workers noticed collected rainwater in discarded utensils and tyres around homes. Without clear knowledge of the cause, the villagers initially Ignored the symptoms, leading to a rise In cases. (Competency Based Que.)
(i) The likely rise in fever cases after rainfall indicates which of the following dIsease transmission
patterns?
(a) Water-borne transmission due to polluted drinking water
(b) Air-borne transmission caused by humidity
(c) Vector-borne transmission facilitated by environmental conditions
(d) Contact transmission due to overcrowding
Answer:
(c) Vector-borne transmission facilitated by environmental conditions
(ii) Which scientific principle Justifies the urgency of removing stagnant water in such situations?
(a) Germs cannot survive in water
(b) Vectors require stagnant water to complete their life cycle
(c) Fever-causing viruses grow only in dry areas
(d) Only drinking water can carry disease-causing microbes
Answer
(b) Vectors require stagnant water to complete their life cycle
Health The Ultimate Treasure Class 8 Fill in the blanks
1. Cold, cough, and fever are common …………………… that helps us identify if someone is unwell.
Answer:
symptoms
2. Eating uncovered food kept in dirty places can cause …………………. due to germs carried by flies.
Answer:
diarrhoea
3. A disease that spreads from one person to another through air, water, food, or contact is called a …………………………… disease.
Answer:
communicable
4. Mosquitoes breeding in stagnant water are carriers of diseases like dengue and …………………….. .
Answer:
malaria
5. ……………………….. enter our body through the mouth and multiply inside, causing infections.
Answer:
Germs
6. High blood pressure and diabetes are examples of ………………………….. diseases as they do not spread from person to person.
Answer:
non-communicable
7. Diseases like measles can be prevented by ………………….. given during childhood.
Answer:
vaccination
8. If many people in an area fall sick due to the same cause, it is called a ………………………. .
Answer:
disease outbreak
9. ……………………. are disease-causing organisms such as bacteria, viruses, or protozoans.
Answer:
Pathogens
10. A healthy person should follow a ……………………… lifestyle to stay fit.
Answer:
healthy
Health The Ultimate Treasure Class 8 True or False
1. Symptoms like fever and cough help in identifying illness.
Answer:
True
2. Germs can enter the body only through cuts and wounds.
Answer:
True
3. Flies can spread diseases by sitting on uncovered food.
Answer:
False; Germs can also enter the body through the mouth by consuming contaminated food or water.
4. Malaria is caused by mosquitoes breeding in stagnant water.
Answer:
True
5. Communicable diseases do not spread from one person to another.
Answer:
False; Communicable diseases spread from one person to another through air, water, food, or contact.
6. Diarrhoea and cholera can spread due to open defecation.
Answer:
True
7. High blood pressure is an example of a non-communicable disease.
Answer:
True
8. Vaccines are given after a person gets infected.
Answer:
False; Vaccines are given before infection to protect the body from certain diseases.
9. All diseases are caused by microbes.
Answer:
False
10. Vaccination helps the body to fight future infections.
Answer:
True
11. Malaria is spread by the bite of an infected mosquito.
Answer:
True
Health The Ultimate Treasure Class 8 Match the following
Question 1.
Match the Column I with Column II.
| Column I | Column II |
| A. Measles | 1. Fever, sore throat, reddish rashes on neck, ears and other parts of the skin |
| B. Tuberculosis (TB) | 2. Cough, fever, fatigue, loss of appetite, night sweats |
| C. Dengue fever | 3. Fever, headache, muscle and joint pain, nausea |
| D. Ascariasis | 4. Worms in stool, loss of appetite, poor growth, diarrhoea, weight loss, anaemia |
| E. Common cold | 5. Nasal congestion, discharge, sore throat, fever, cough, body ache |
Answer:
A – 1, B – 2, C – 3, D – 4, E – 5
| Column I | Column II |
| A. Measles | 1. Fever, sore throat, reddish rashes on neck, ears and other parts of the skin |
| B. Tuberculosis (TB) | 2. Cough, fever, fatigue, loss of appetite, night sweats |
| C. Dengue fever | 3. Fever, headache, muscle and joint pain, nausea |
| D. Ascariasis | 4. Worms in stool, loss of appetite, poor growth, diarrhoea, weight loss, anaemia |
| E. Common cold | 5. Nasal congestion, discharge, sore throat, fever, cough, body ache |
Question 2.
Match the Column I with Column II.
| Column I | Column II |
| A. Tuberculosis | 1. Bacterial disease |
| B. Dengue | 2. Spreads through vector |
| C. Vaccine | 3. Builds immunity |
| D. Sanitation | 4. Prevents disease spread |
(a) A → 1, B → 2, C → 3, D → 4
(b) A → 2, B → 1, C → 3, D → 4
(C) A → 3, B → 2, C → 4, D → 1
(d) A → 4, B → 3, C → 2, D → 1
Answer:
(a) A → 1, B → 2, C → 3, D → 4
| Column I | Column II |
| A. Tuberculosis | 1. Bacterial disease |
| B. Dengue | 2. Spreads through vector |
| C. Vaccine | 3. Builds immunity |
| D. Sanitation | 4. Prevents disease spread |