APES Renewable COVID 2021

How does biomass reduce our carbon footprint by producing less CO2 than fossil fuels?

• Plants absorb the same amount of CO2 that is released when it is burned.
• Plants remove CO2 from the atmosphere and put it permanently into the ground.
• Biomass filters CO2 to make it more environmentally stable.
• Biomass doesn't release any CO2 when burned.

Which of the following energy sources has the lowest negative environmental impacts?

• Biomass
• Nuclear
• Natural Gas
• Solar

Which of the following DOES NOT use a turbine?

• Hydroelectric
• Wind
• Solar
• Nuclear

Heating and cooling buildings by exchange with shallow groundwater systems is considered a form of ___ energy.  

• geothermal
• solar
• kinetic
• potential

What is and example of cogeneration?

• heat energy normally wasted is used to power a turbine
• a power plant that gets energy from both nuclear and hydroelectric
• a type of wind turbine that can be powered by wind or steam
• harvesting natural gas and petroleum from the same field

Put the items below in correct sequence for the generation of electricity using the wind
1 – generator converts mechanical energy into electrical energy
2 – wind turns the wind turbine blade
3 – the gear box transfers mechanical energy to the generator
4 – electricity is transferred to the grid

• 1-2-3-4
• 2-1-3-4
• 2-3-1-4
• 2-4-3-1

Most of the developing countries in the world depend on _______ for their main source of energy.

• renewable sources
• nuclear
• biomass (including wood, manure, etc)
• coal

a downside to relying on biomass as a primary fuel source for a nation is that

• it can cause soil erosion, water pollution, and habitat loss
• it requires little land use
• it produces no pollution
• it produces more pollution than coal 

The most commonly used approach to solar energy collection is ________, in which buildings are designed and building materials chosen to maximize their direct absorption of sunlight in winter, even as they keep the interior cool in the heat of summer.

• Active
• Passive

Which of the following is a disadvantage of solar energy?

• It can only be used effectively in certain regions and certain times of day
• It produces greenhouse gases during use
• It is a nonrenewable energy source
• It is inexpensive compared to other sources