Challenge 8 2nd grade

What are the main sources of energy on our planet?

• Fossil fuels

• Solar power

• Wind energy

• Hydroelectric power

Which of the following is a fossil fuel?

• Solar energy

• Wind energy

• Geothermal energy

• Coal

What is the greenhouse effect primarily caused by?

• Ocean currents

• Solar flares

• Greenhouse gases

• Volcanic eruptions

Which of the following is a type of renewable energy?

• Coal

• Natural gas

• Wind energy

• Nuclear energy

What is an important ethical consideration in energy consumption?

• Availability

• Cost

• Sustainability

• Convenience

What does energy efficiency aim to achieve?

• Increase energy production

• Reduce energy waste

• Decrease energy costs

• Enhance energy storage

How does pollution affect human health?

• Causes respiratory issues

• Strengthens bones

• Improves digestion

• Enhances vision

What is Goal 12 of the United Nations?

• Climate action

• Quality education

• Affordable and clean energy

• Responsible consumption and production

What is Goal 7 of the United Nations?

• Life below water

• Affordable and clean energy

• Zero hunger

• Gender equality

Which of the following is a characteristic of sustainable cities?

• Overpopulation

• High pollution levels

• Efficient public transport

• Limited green spaces