Environmental Health 50 min Score: 0 Attempted: 0/50 Subscribe 1. What is the primary goal of environmental health? (A) Increase industrial production (B) Build more roads (C) Protect human health by controlling environmental factors (D) Promote tourism 2. Environmental health mainly deals with: (A) Sports management (B) Banking services (C) Stock markets (D) Physical, biological, and chemical factors affecting health 3. Which organization plays a leading role in global environmental health? (A) UNESCO (B) FIFA (C) IMF (D) WHO 4. Which of the following is an environmental health hazard? (A) Playing games (B) Reading books (C) Air pollution (D) Watching television 5. The main source of indoor air pollution in rural areas is: (A) Computers (B) Biomass fuel burning (C) Mobile phones (D) Refrigerators 6. Which gas is primarily responsible for the greenhouse effect? (A) Oxygen (O₂) (B) Carbon dioxide (CO₂) (C) Nitrogen (N₂) (D) Helium (He) 7. Acid rain is mainly caused by: (A) Hydrogen and helium (B) Oxygen and nitrogen (C) Sulfur dioxide and nitrogen oxides (D) Carbon monoxide only 8. Safe drinking water should be: (A) Warm only (B) Salty (C) Colored (D) Free from harmful microorganisms 9. Chlorination of water is mainly done to: (A) Increase minerals (B) Improve taste only (C) Kill disease-causing microorganisms (D) Reduce temperature 10. Which disease is commonly spread through contaminated water? (A) Arthritis (B) Diabetes (C) Hypertension (D) Cholera 11. Which is a waterborne disease? (A) Epilepsy (B) Asthma (C) Migraine (D) Typhoid fever 12. Improper disposal of solid waste can lead to: (A) Better sanitation (B) Spread of diseases (C) Improved air quality (D) Increased crop production 13. The most preferred method of waste management is: (A) Open burning (B) Open dumping (C) Reduce, Reuse, Recycle (D) Throwing waste into rivers 14. Biomedical waste should be: (A) Mixed with household waste (B) Properly segregated and treated (C) Burned openly (D) Dumped in rivers 15. Which color bag is commonly used for infectious biomedical waste? (A) Black (B) Blue (C) Yellow (D) Green 16. Noise pollution mainly affects: (A) Hearing (B) Vision only (C) Digestion only (D) Hair growth 17. Prolonged exposure to loud noise may cause: (A) Improved memory (B) Hearing loss (C) Better eyesight (D) Weight gain 18. Which vector spreads malaria? (A) Housefly (B) Female Anopheles mosquito (C) Cockroach (D) Flea 19. Dengue fever is transmitted by: (A) Housefly (B) Sandfly (C) Aedes mosquito (D) Tick 20. Which insect is commonly associated with the spread of typhoid and diarrhea? (A) Housefly (B) Butterfly (C) Honeybee (D) Grasshopper 21. The process of destroying disease-causing microorganisms is called: (A) Filtration (B) Disinfection (C) Sedimentation (D) Composting 22. Which is an example of chemical water disinfection? (A) Boiling (B) Chlorination (C) Filtration (D) Sedimentation 23. Boiling water makes it safer by: (A) Killing most microorganisms (B) Increasing pollution (C) Adding chemicals (D) Changing its color 24. Sanitary landfill is a method of: (A) Food preservation (B) Water purification (C) Solid waste disposal (D) Air pollution control 25. Which of the following is biodegradable? (A) Plastic bottle (B) Vegetable peels (C) Glass (D) Aluminum can 26. Which is a non-biodegradable waste? (A) Plastic bag (B) Fruit peel (C) Leaves (D) Paper towel 27. Environmental sanitation helps to: (A) Reduce food production (B) Increase pollution (C) Prevent disease transmission (D) Increase noise pollution 28. Proper sewage disposal prevents: (A) Soil formation (B) Rainfall (C) Earthquakes (D) Water pollution 29. Which pollutant is mainly responsible for smog? (A) Hydrogen (B) Oxygen (C) Nitrogen oxides and particulate matter (D) Helium 30. The ozone layer protects humans from: (A) Infrared radiation (B) Ultraviolet (UV) radiation (C) Sound waves (D) Radio waves 31. Deforestation contributes to: (A) Reduced soil erosion (B) Better air quality (C) Increased biodiversity (D) Climate change 32. Which gas is commonly known as a poisonous gas from incomplete combustion? (A) Nitrogen (B) Oxygen (C) Carbon monoxide (D) Hydrogen 33. Which environmental factor is essential for healthy housing? (A) Damp rooms (B) No windows (C) Proper ventilation (D) Poor lighting 34. Overcrowding in houses increases the risk of: (A) Higher income (B) Better health (C) Communicable diseases (D) Better ventilation 35. Which is a renewable source of energy? (A) Petroleum (B) Coal (C) Solar energy (D) Natural gas 36. Which disease is commonly linked with poor sanitation? (A) Migraine (B) Asthma (C) Cancer (D) Diarrhea 37. The main purpose of food hygiene is to: (A) Increase food prices (B) Improve food color only (C) Prevent foodborne diseases (D) Reduce food quantity 38. Which microorganism commonly causes food poisoning? (A) Yeast only (B) Lactobacillus (C) Salmonella (D) Algae 39. Environmental health is a branch of: (A) Astronomy (B) Public Health (C) Economics (D) Architecture 40. Which of the following is a biological pollutant? (A) Lead (B) Carbon dioxide (C) Dust (D) Bacteria 41. Lead exposure mainly affects the: (A) Hair only (B) Nervous system (C) Nails only (D) Teeth only 42. Which international day promotes environmental awareness? (A) World Environment Day (June 5) (B) World Health Day (April 7) (C) World AIDS Day (December 1) (D) International Nurses Day (May 12) 43. Composting is used for: (A) Plastic recycling (B) Organic waste management (C) Glass production (D) Metal extraction 44. Which environmental issue results from excessive nutrient runoff into water bodies? (A) Earthquake (B) Desertification (C) Eutrophication (D) Volcanic eruption 45. Which gas is mainly responsible for ozone layer depletion? (A) Chlorofluorocarbons (CFCs) (B) Oxygen (C) Nitrogen (D) Hydrogen 46. The best way to control mosquito breeding is to: (A) Eliminate stagnant water (B) Increase garbage piles (C) Store water uncovered (D) Keep drains blocked 47. Which environmental hazard is associated with excessive heat exposure? (A) Ear infection (B) Cataract (C) Tooth decay (D) Heat stroke 48. Which environmental factor is measured in decibels (dB)? (A) Water quality (B) Noise (C) Air pressure (D) Humidity 49. Environmental Impact Assessment (EIA) is conducted before: (A) Vaccination campaigns (B) School examinations (C) Hospital admissions (D) Major development projects 50. The ultimate aim of environmental health is to: (A) Create a safe and healthy environment for all (B) Increase industrial waste (C) Promote pollution (D) Encourage deforestation