Renewable and Non-Renewable Energy

What is one of the uses of wood when it is burned directly?

• Building furniture

• Producing textiles

• Generating electricity

• Manufacturing plastics

Which of the following plants can be used to produce biofuels due to their natural sugars or starches?

• Sugarcane

• Wheat

• Rice

• Barley

What type of biofuel is produced by fermenting natural sugars with microorganisms?

• Ethanol

• Propane

• Butane

• Diesel

Cellulose, found in stems, leaves, and wood, can be converted into which type of fuel?

• Methane

• Gasoline

• Kerosene

• Coal

What process is often used to produce methane or other biofuels from agricultural or forestry waste?

• Chemical or microbial processes

• Mechanical separation

• Thermal decomposition

• Electrolysis

Which component of the wind turbine is responsible for changing low voltage into high voltage?

• Rotor blade

• Generator

• Transformer

• Nacelle

What happens to power output when there is no sunshine in a direct solar energy system?

• It increases

• It remains constant

• There is no power output

• It doubles

What is the average efficiency of photovoltaic panels?

• 10%

• 20%

• 30%

• 46%

What factor is mentioned as reducing the efficiency of photovoltaic panels?

• Rain

• Wind

• Dust

• Temperature

What is the primary cause of tidal movement?

• Wind patterns

• Gravitational pull from the moon and the sun

• Ocean currents

• Earth's rotation