Greenhouse Gases and Their Effects

The video explains how greenhouse gases like carbon dioxide help regulate Earth's temperature by trapping heat in the atmosphere, a process known as the greenhouse effect. Sunlight, absorbed by land and water, is re-emitted as infrared radiation, some of which is trapped by greenhouse gases, warming the planet. While essential for life, excess greenhouse gases from human activities like burning fossil fuels are causing global warming, leading to climate changes such as altered precipitation patterns, rising sea levels, and melting ice. This disrupts Earth's natural balance, posing significant environmental challenges.

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

• To cool down the Earth

• To trap heat and keep the Earth warm

• To absorb all sunlight

• To reflect sunlight back into space

What happens to most of the sunlight that reaches the Earth?

• It is absorbed by land and water

• It is reflected back to space

• It is absorbed by greenhouse gases

• It is converted into wind energy

What form of energy does the Earth emit after warming up?

• Visible light

• Microwave radiation

• Infrared radiation

• Ultraviolet radiation

Why are some greenhouse gases necessary for life on Earth?

• They provide oxygen for breathing

• They trap heat, making the planet warm enough for life

• They help plants perform photosynthesis

• They protect us from ultraviolet radiation

What human activities contribute to the increase of greenhouse gases in the atmosphere?

• Driving cars, using electricity, and manufacturing products

• Planting trees and conserving water

• Recycling and composting

• Using solar and wind energy

How do extra greenhouse gases affect the Earth's temperature?

• They make the Earth cooler

• They cause the Earth to lose heat

• They have no effect on the Earth's temperature

• They trap more heat, making the Earth warmer

What are some consequences of increased global temperatures due to extra greenhouse gases?

• More frequent volcanic eruptions and earthquakes

• Increased ice formation and cooler global temperatures

• Changing rain and snow patterns, rising sea levels, and melting glaciers

• Decreased sea levels and more stable weather patterns