Is Your Planet Safe?

Explanation
The answer "less than 1 a week, less than 3 a week" suggests that the person does not frequently use aerosols. They use aerosols less than once a week and less than three times a week, indicating that their usage is infrequent.

Explanation
The given question asks about the primary mode of travel. The answer "Bike, train" suggests that the person's primary modes of travel are both biking and taking the train. This means that they likely use a bicycle for shorter distances and rely on trains for longer journeys. It indicates that they prefer more environmentally friendly and cost-effective options for transportation.

Explanation
The correct answer is "solar panels, wind mills, both." This means that the person has both solar panels and wind mills. They may have chosen to install both renewable energy sources to maximize their energy production and reduce reliance on traditional sources of electricity. By having both solar panels and wind mills, they can take advantage of the sun's energy during the day and the wind's energy at other times, ensuring a more consistent and sustainable power supply.

Explanation
The given correct answer is "yes" because it indicates that the person is willing to adopt environmentally friendly practices or support sustainability initiatives. Going "green" typically refers to making choices and taking actions that have a positive impact on the environment, such as conserving energy, reducing waste, and using eco-friendly products. By selecting "yes," the person is expressing their willingness to contribute to a more sustainable future.

Explanation
The correct answer is 20%. This means that 20% of the Earth's surface is arable, or suitable for agriculture. Arable land is land that can be used for growing crops and is essential for food production. The remaining 80% of the Earth's surface consists of non-arable land, such as deserts, mountains, and bodies of water, which are not suitable for agriculture.

Explanation
Venice, Italy is sinking into the sea due to a combination of factors. The city is built on a series of small islands and is gradually sinking into the Venetian Lagoon. Additionally, the extraction of groundwater from underground aquifers has caused the city to sink even further. The rising sea levels and increased flooding in recent years have exacerbated the problem. Efforts are being made to mitigate the sinking, such as the MOSE project which aims to construct barriers to protect the city from high tides.

Explanation
Hybrid cars perform on par with or better than conventional cars in driveability and safety testing.

Explanation
Approximately 10 percent of global electricity output is produced from renewable sources. This means that a significant portion of the world's electricity is generated through renewable energy sources such as solar, wind, hydro, and geothermal power. This is a positive trend as it indicates a shift towards cleaner and more sustainable energy options, reducing reliance on fossil fuels and mitigating the impact of climate change.

Explanation
Leaving a lamp with a compact fluorescent light on is not better than turning it on and off several times a day. Compact fluorescent lights have a longer lifespan when they are turned on and off less frequently. Turning them on and off multiple times a day can actually reduce their lifespan and energy efficiency. Therefore, it is more advisable to turn off the lamp when not in use rather than leaving it on continuously.

Explanation
Dropping the thermostat from 70 to 68 degrees (21.1 to 20 degrees Celsius) saves you about 20 percent on your heating costs. Lowering the temperature by 2 degrees may not seem significant, but it can result in substantial savings in energy consumption and heating expenses. This reduction in temperature allows the heating system to work less, leading to lower energy usage and cost.