The Greenhouse Effect

The video explains how greenhouse gases trap heat in Earth's atmosphere, acting like a blanket. Human activities, such as burning fossil fuels and deforestation, increase these gases, particularly carbon dioxide and methane. This leads to a thicker atmospheric blanket, causing global temperatures to rise. Methane, largely from agriculture, is a potent greenhouse gas. Despite cleaner energy technologies, greenhouse gas levels continue to rise, accelerating climate change.

What is the primary function of greenhouse gases in Earth's atmosphere?

• To trap heat close to the Earth's surface

• To cool down the Earth's surface

• To increase oxygen levels

• To block sunlight from reaching Earth

Which gas is primarily released from the combustion of fossil fuels?

• Nitrogen

• Methane

• Oxygen

• Carbon Dioxide

How do trees and plants help in reducing carbon dioxide levels?

• By releasing carbon dioxide

• By absorbing carbon dioxide

• By blocking sunlight

• By increasing methane levels

What is a significant source of methane emissions?

• Photosynthesis

• Deforestation

• Cattle farming

• Burning fossil fuels

How much more effective is methane at trapping heat compared to carbon dioxide?

• 30 times

• 23 times

• 15 times

• 10 times