Improving Solutions

The video discusses the ongoing challenges of pollution from cars and the efforts by scientists and engineers to create cleaner vehicles. It also covers the importance of electricity in powering light bulbs and the advancements in light bulb technology, such as the development of CFL bulbs, which use significantly less electricity and last longer, reducing the reliance on fossil fuels.

What is a major environmental issue caused by cars, despite technological advancements?

• Air pollution

• Noise pollution

• Soil erosion

• Water pollution

Why is it important to use less electricity in lighting homes and buildings?

• To increase the brightness of lights

• To reduce the cost of light bulbs

• To make light bulbs last longer

• To decrease the demand for electricity production

What is a key feature of CFL bulbs compared to incandescent bulbs?

• They use more electricity

• They are cheaper to produce

• They last about 10 times longer

• They are less bright

How much less electricity does a CFL bulb use compared to an incandescent bulb?

• 25% less

• 90% less

• 50% less

• 75% less

What environmental benefit do CFL bulbs provide?

• They eliminate the need for electricity

• They increase the use of solar power

• They help decrease fossil fuel consumption

• They reduce the need for renewable energy