Health and Hygiene Practice Questions
20 free Health and Hygiene practice questions for the General Science. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Personal hygiene primarily helps to prevent:
- A Inherited genetic disorders
- B Communicable diseases
- C The natural aging process
- D Vitamin deficiency
Correct answer: Communicable diseases
Personal hygiene reduces the spread of communicable diseases caused by bacteria and viruses. Practices like handwashing and bathing remove harmful microorganisms. This helps maintain overall health.
Which organ system is directly supported by proper dental hygiene?
- A Respiratory system
- B Digestive system
- C Nervous system
- D Endocrine system
Correct answer: Digestive system
The mouth is the starting point of the digestive system. Good dental hygiene prevents tooth decay and gum disease, ensuring proper chewing and digestion. Oral health is closely linked to digestive health.
Washing hands with soap is effective because it:
- A Sterilizes the skin surface
- B Removes and kills many pathogens
- C Creates a permanent barrier on the skin
- D Dries out the skin surface
Correct answer: Removes and kills many pathogens
Soap helps break down oils and remove dirt and microorganisms from the skin. It disrupts the lipid membranes of many pathogens. This significantly reduces infection risk.
Deficiency of which vitamin most commonly leads to dry, rough, scaly skin?
- A Vitamin A
- B Vitamin C
- C Vitamin D
- D Vitamin K
Correct answer: Vitamin A
Vitamin A maintains epithelial tissues, including the skin. When it is deficient, the skin becomes dry, rough and scaly, a change known as follicular hyperkeratosis. The same deficiency also impairs vision in dim light.
Which practice helps prevent the spread of respiratory infections?
- A Sharing utensils with others
- B Covering mouth while coughing
- C Avoiding adequate water intake
- D Skipping meals regularly
Correct answer: Covering mouth while coughing
Covering the mouth and nose while coughing or sneezing reduces the spread of respiratory droplets. These droplets can carry pathogens. Proper respiratory hygiene protects others.
Regular bathing primarily helps to:
- A Increase bone density over time
- B Remove sweat and microorganisms
- C Improve eyesight significantly
- D Strengthen teeth and gums
Correct answer: Remove sweat and microorganisms
Bathing removes sweat, dirt, and microorganisms from the skin surface. This reduces body odor and prevents skin infections. It is an essential part of personal hygiene.
Which part of the human body benefits most directly from nail trimming?
- A Heart and blood vessels
- B Lung tissue and airways
- C Skin and nearby tissue
- D Kidneys and bladder
Correct answer: Skin and nearby tissue
Trimming nails reduces the accumulation of dirt and pathogens. Long nails can harbor bacteria and cause infections. Proper nail hygiene supports skin health.
Drinking clean water is important because it prevents:
- A Waterborne diseases
- B Stress bone fractures
- C Chronic muscle fatigue
- D Skin pigmentation
Correct answer: Waterborne diseases
Clean water prevents waterborne diseases such as cholera and typhoid. Contaminated water can carry harmful microorganisms. Safe water is vital for maintaining health.
Which organ detoxifies harmful substances in the body?
- A Heart
- B Liver
- C Lungs
- D Stomach
Correct answer: Liver
The liver processes and detoxifies harmful substances. It plays a crucial role in metabolism and waste removal. Maintaining hygiene reduces exposure to toxins.
Which hygiene practice is most effective in preventing dental cavities?
- A Rinsing with plain water only
- B Brushing teeth with fluoride toothpaste
- C Regularly consuming sugary and sticky foods
- D Completely avoiding the chewing of food
Correct answer: Brushing teeth with fluoride toothpaste
Brushing with fluoride toothpaste removes plaque and strengthens enamel. Fluoride helps prevent tooth decay. Regular brushing is essential for oral hygiene.
Proper waste disposal reduces the spread of diseases by:
- A Increasing the indoor humidity levels
- B Attracting disease-carrying insects and pests
- C Eliminating breeding grounds for pathogens
- D Lowering the available oxygen levels
Correct answer: Eliminating breeding grounds for pathogens
Improper waste disposal can attract insects and rodents that spread disease. Proper disposal prevents pathogen breeding. This supports community hygiene.
Which mineral is essential for strong bones and teeth?
- A Iron
- B Calcium
- C Sodium
- D Potassium
Correct answer: Calcium
Calcium is vital for the development and maintenance of strong bones and teeth. It supports skeletal structure. Adequate intake prevents disorders like osteoporosis.
Which body system helps protect against infections through white blood cells?
- A Digestive system
- B Immune system
- C Respiratory system
- D Reproductive system
Correct answer: Immune system
The immune system defends the body against infections. White blood cells identify and destroy pathogens. Good hygiene supports immune function.
Sweat glands primarily help regulate:
- A Blood sugar levels
- B Body temperature
- C Heart rate
- D Vision
Correct answer: Body temperature
Sweat glands produce sweat to cool the body through evaporation. This helps maintain stable body temperature. Proper hygiene prevents sweat-related odor and infections.
Regular physical exercise contributes to health by:
- A Weakening and deteriorating muscle tissue
- B Improving circulation and organ function
- C Reducing the body's overall oxygen intake
- D Significantly increasing harmful gut bacteria
Correct answer: Improving circulation and organ function
Exercise enhances blood circulation and supports organ function. It strengthens muscles and improves overall health. Combined with hygiene, it promotes well-being.
Which nutrient is essential for wound healing and immune support?
- A Vitamin C
- B Vitamin B12
- C Vitamin K
- D Vitamin E
Correct answer: Vitamin C
Vitamin C supports collagen formation and immune function. It aids in wound healing. Deficiency can impair recovery from injuries.
Why is it important to wash fruits and vegetables before consumption?
- A To significantly improve taste and food quality
- B To remove surface contaminants and microbes
- C To naturally increase the sweetness level
- D To add essential vitamins and nutrients
Correct answer: To remove surface contaminants and microbes
Washing removes dirt, pesticides, and microorganisms from produce. This reduces the risk of foodborne illness. Proper food hygiene is essential for health.
Which practice helps prevent fungal infections of the feet?
- A Wearing damp shoes for long periods
- B Keeping feet clean and dry
- C Avoiding sunlight permanently
- D Skipping bathing
Correct answer: Keeping feet clean and dry
Fungi thrive in moist environments. Keeping feet clean and dry reduces infection risk. Good hygiene prevents conditions like athlete’s foot.
Adequate sleep is important for maintaining:
- A Immune function and tissue repair
- B Natural hair color and texture
- C Natural eye color and clarity
- D A permanent increase in body height
Correct answer: Immune function and tissue repair
Sleep allows the body to repair tissues and maintain immune function. Lack of sleep can weaken resistance to infection. It is a key aspect of overall health.
Which organ system removes waste products through urine?
- A Digestive system
- B Urinary system
- C Respiratory system
- D Nervous system
Correct answer: Urinary system
The urinary system filters blood and removes waste as urine. The kidneys play a central role in this process. Proper hydration supports its function.