Environmental Engineering – Multiple Choice Questions (MCQs)

1. 97. What is "Photovoltaic (PV) system"?

   • A. A system for water purification
   • B. A system that converts sunlight directly into electricity
   • C. A system for air purification
   • D. A system for wastewater treatment

2. 98. What is "Geothermal Energy"?

   • A. Energy from the sun
   • B. Energy from wind
   • C. Energy derived from the heat of the Earth's interior
   • D. Energy from fossil fuels

3. 99. The "polluter pays principle" states that:

   • A. The government pays for pollution control
   • B. The polluter should bear the costs of preventing and controlling pollution
   • C. The public pays for pollution
   • D. International organizations pay for pollution

4. 100. What is a "Biofilter" in air pollution control?

   • A. A filter made of plastic
   • B. A filter that uses microorganisms to remove pollutants from air
   • C. A filter for water
   • D. A filter for noise

5. 101. The "pH" of acid rain is typically:

   • A. Above 7.0
   • B. Below 5.6
   • C. Exactly 7.0
   • D. Varies greatly

6. 102. What is "Thermal Pollution"?

   • A. Pollution due to cold water discharge
   • B. Discharge of heated water into natural water bodies
   • C. Pollution from hot air
   • D. Pollution from excessive light