I Know My Planet Earth

Explanation
Earth Hour started in 2007.

Explanation
Earth Hour was initiated in India in 2009. This global environmental movement encourages individuals, communities, and businesses to turn off non-essential lights for one hour as a symbol of their commitment to the planet. The initiative aims to raise awareness about climate change and the need for sustainable actions. By choosing 2009 as the correct answer, it indicates that Earth Hour was officially introduced and observed in India during that year.

Explanation
Sydney is the correct answer because it was the first city to initiate Earth Hour. Earth Hour is an annual event where people and businesses turn off their lights for one hour to raise awareness about climate change and promote sustainability. Sydney started this initiative in 2007, and since then, it has spread to many other cities around the world.

Explanation
WWF, also known as the World Wildlife Fund, is the organizer of Earth Hour. Earth Hour is a global event organized by WWF, where individuals and communities turn off their lights for one hour to raise awareness about climate change and promote sustainability. WWF has been organizing Earth Hour since 2007, and it has grown into a worldwide movement with millions of participants across the globe.

Explanation
Amir Khan was the brand ambassador of Earth Hour 2009 in India. He was chosen to promote and raise awareness about the importance of conserving energy and reducing carbon emissions. As a well-known actor and social activist, Amir Khan's association with Earth Hour helped in reaching a wider audience and encouraging them to participate in the global movement.

Explanation
By switching off for 1 hour, a city can save 85% of electricity. This is because when electrical appliances are turned off, they are not consuming any power, resulting in a significant reduction in electricity usage. Therefore, by switching off for 1 hour, the city can save a considerable amount of electricity, leading to energy conservation and cost savings.

Explanation
The major cause of global warming is a combination of factors, including CO2 emissions, environmental pollution, and methane. CO2 emissions result from burning fossil fuels and deforestation, leading to the greenhouse effect. Environmental pollution, such as the release of harmful chemicals and pollutants into the air and water, contributes to climate change. Methane, a potent greenhouse gas, is released from various sources such as livestock and agricultural practices. Therefore, all of the mentioned factors contribute to global warming.

Explanation
A CFL (Compact Fluorescent Lamp) uses 75 percent less energy compared to a normal bulb. This means that CFLs are more energy-efficient and consume significantly less electricity to produce the same amount of light. This makes CFLs a more environmentally friendly and cost-effective choice for lighting.

Explanation
The objective of Earth Hour is to stand with solidarity and act towards saving our planet. This means that during Earth Hour, people come together to show their support for environmental conservation and take actions to reduce their impact on the planet. This can include turning off lights and other electrical devices for one hour to save energy and raise awareness about the importance of sustainable living.

Explanation
COP 15 refers to the 15th annual United Nations Climate Change Conference of the Parties. The question asks where this conference was held last year. The correct answer is Copenhagen.