What is a 'green house' effect ? How is this phenomenon used for growing plants especially in winter ?

Explanation

### Step-by-Step Solution:

1. **Definition of Greenhouse Effect**:
The greenhouse effect refers to the process by which certain gases in the Earth's atmosphere, known as greenhouse gases (like carbon dioxide, methane, and water vapor), trap heat from the sun. This trapped heat warms the Earth's surface, creating a suitable climate for life.

2. **Mechanism of the Greenhouse Effect**:
- Solar radiation from the sun reaches the Earth.
- Some of this radiation is absorbed by the Earth's surface, warming it.
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