Wind vs Solar vs Coal

Which two are more cost effective

• Coal and Wind

• Solar and Coal

• Water Energy and Solar

• Wind and Solar

Which energy source is more efficient

• Solar

• Coal

• Coal and Solar

• Wind

Why is Solar and Wind more efficient in converting energy

• Limited availability, high cost, and pollution
• Renewable, abundant, and no greenhouse gas emissions
• Require constant maintenance, not scalable, and inefficient
• Because their processes involve fewer energy conversion steps compared to coal-fired power plants

What is safer

• Coal

• Wind

• Solar

• Water

What makes Solar and Wind safer

• They are more expensive to install and operate.
• They do not produce harmful emissions or pollutants.
• They are not as efficient as traditional energy sources.
• They require constant maintenance and repair.

What makes Coal unsafe

• High levels of beneficial gases and mining safety
• No impact on the environment and safe for workers
• High levels of harmful gases and mining hazards
• Low levels of harmful gases and mining hazards

Which is NOT a non-renewable energy source?

• coal

• oil

• wind

• gas

The fossil fuel that most likely provides the electricity for your tablets is _____.

• petroleum

• natural gas

• crude oil

• coal

The ultimate source of energy is?

• sky

• sun

• movement

• plants

All energy on Earth ultimately comes from what source? (a)  

• Water
• Sun
• Consumers
• Oxygen