Meaning of green house is:

Options

A. To stop solar energy by atmospheric `CO_2 `
B. Pollution in environment
C. To paint the homes with green colour
D. To plant the green plants

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Greenhouse**: A greenhouse is a structure made primarily of glass that is designed to create a controlled environment for growing plants, particularly in colder climates. The glass allows sunlight to enter while trapping heat, creating a warmer environment inside.

2. **Function of a Greenhouse**: When sunlight enters the greenhouse, it warms the interior. The glass structure prevents the warm air from escaping, thus maintaining a higher temperature inside compared to the outside environment. This is beneficial for growing vegetables and fruits in regions where the climate would otherwise be too cold.

3. **Greenhouse Effect on Earth**: The term "greenhouse effect" can also refer to the way Earth's atmosphere functions similarly to a greenhouse. The Earth is surrounded by gases, including carbon dioxide (CO2), which trap heat. When sunlight reaches the Earth, some of it is absorbed and warms the surface. The gases in the atmosphere then prevent some of this heat from escaping back into space, leading to an increase in Earth's temperature.

4. **Impact of Pollution**: Human activities, such as burning fossil fuels and deforestation, increase the concentration of greenhouse gases like CO2 in the atmosphere. This enhances the greenhouse effect, resulting in global warming and climate change.

5. **Conclusion**: The greenhouse effect is essential for maintaining life on Earth, but an excess of greenhouse gases due to pollution can lead to harmful consequences, such as global warming.