Which renewable resource gets its energy directly from the sun?

• Geothermal

• Solar

• Wind

• Hydrogen

What is an advantage for solar cells resources?

• Maintenance costs are low.

• The energy will run out

• They are expensive

• They create pollution

When energy is generated from the burning of wood or other fresh organic matter, we call it_______.

• Solar Energy
• Biomass Energy
• Geothermal Energy
• Nonrenewable energy

Which of the following is a disadvantage of solar energy?

• It only works at night

• It works only during windy days.

• The solar panels are expensive to buy

• Maintenance costs are minimal

What form of renewable energy requires a dam?

• solar
• nuclear
• biomass
• hydroelectric

Where will it be better to place a wind turbine?

• On top of a hill/mountain

• In a valley

• In the woods

• Out to sea

True or False: All renewable energy resources have zero carbon footprint.

• True

• False

What insulation reduces heat conducting through a surface of a building?

• Draught excluder

• Cavity wall insulation

• Loft insulation

• Central heating

Which insulation cuts down on convection currents?

• Single Glazing

• Underlay

• Loft insulation

• Silver panels behind radiators

How do you work out pay back time?

• savings per year / installation cost
• useful energy / time
• installation cost / savings per year
• time / useful energy