#1
Which of the following is a renewable energy source?
Solar
ExplanationSolar energy is a renewable source derived from the sun's radiation.
#2
What is the main advantage of wind energy?
Reduced greenhouse gas emissions
ExplanationWind energy contributes to reduced greenhouse gas emissions, promoting environmental sustainability.
#3
Which renewable energy source is derived from organic matter?
Biomass
ExplanationBiomass energy is generated from organic materials, such as plants and waste.
#4
What is the primary disadvantage of hydroelectric power?
Negative impact on aquatic ecosystems
ExplanationHydroelectric power can negatively impact aquatic ecosystems due to changes in water flow and temperature.
#5
Which of the following is NOT a type of solar energy technology?
Solar wind
ExplanationSolar wind is not a type of solar energy technology; it refers to the stream of charged particles emitted from the sun.
#6
Which of the following is an example of a biofuel?
Ethanol
ExplanationEthanol is a biofuel, produced from organic materials such as crops or waste.
#7
What is the efficiency of typical photovoltaic solar panels?
Around 20%
ExplanationTypical photovoltaic solar panels have an efficiency of around 20% in converting sunlight into electricity.
#8
Which renewable energy technology relies on the temperature difference between the Earth's surface and deep underground?
Geothermal energy
ExplanationGeothermal energy harnesses the temperature difference between the Earth's surface and deep underground for power generation.
#9
What is the primary advantage of tidal energy?
Predictable power generation
ExplanationTidal energy offers predictable power generation based on the regular rise and fall of tides.
#10
Which renewable energy source is based on harnessing the energy of ocean waves?
Wave energy
ExplanationWave energy is derived from the motion of ocean waves and can be harnessed for power generation.
#11
What is the main disadvantage of geothermal energy?
Limited geographical availability
ExplanationGeothermal energy is limited by geographical availability, as it requires specific geological conditions for optimal power generation.