Visit the website given below and study the effect of the concentration of greenhouse gas. Class 9

Visit the website given below and study the effect of the concentration of greenhouse gas. Class 9

Pause and Ponder (Page 258)

Question 1.

Visit the website given below and study the effect of the concentration of greenhouse gas on surface temperature, https://phet.colorado.edu/en/simulations/greenhouse-effect. Class 9

Answer:

By visiting the greenhouse effect simulation, we observe that as the concentration of greenhouse gases increases, the surface temperature of the Earth also increases. Greenhouse gases such as carbon dioxide, methane and water vapour trap more heat radiated from the Earth’s surface and prevent it from escaping into space. This increases the warming of the atmosphere and surface of the Earth.

When the concentration of greenhouse gases is low, more heat escapes into space and the Earth remains cooler. But when their concentration becomes high, more heat is trapped, leading to global warming and climate change.