Biogeochemical Cycles
Chapter Name : Natural Resources |
Sub Topic Code : 103_09_14_05_04 |
Topic Name : Biogeochemical Cycles |
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Sub Topic Name : The Greenhouse Effect |
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Introduction
The entrapment of temperature due to increase of greenhouse gases on the Earth has led to greenhouse effect which leads to global warming.
Pre-Requisites:
Gases in the atmosphere.
Real Life Question:
We hear about the glaciers melting at Arctic and Antarctic poles due to global warming. What causes this?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Greenhouses | Glass traps heat and this phenomenon was used to create an enclosure where tropical plants could be kept warm during the winters in colder climates. Such enclosures are called greenhouses. |
| Greenhouse effect | Some gases prevent escape of heat from the Earth and an increase in the percentage of such gases in the atmosphere would cause the average temperatures to increase worldwide and this is called the greenhouse effect. |
| Global warming | Carbon dioxide is one of the greenhouse gases and an increase in the carbon dioxide content in the atmosphere causes more heat to be retained by the atmosphere leading to global warming. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Encyclopedia and internet | Find the consequences of global warming and names of other greenhouse gases |
Real life uses :
Global warming leads to increase in the temperature on the earth leading to harmful effects.
Places to visit :
Greenhouse enclosure plantations.
Practical examples around us
| Examples | Explainations |
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What you learn in Theory:
Increase in greenhouse gases causes greenhouse effect. This leads to global warming.
What you learn in Practice:
How temperature increases on the earth?