Question

Select the statement(s) that are true about greenhouse gases emissions.


Greenhouse gases occur naturally.


Burning fossil fuels is the largest anthropogenic source of carbon dioxide.


Greenhouse gases are crucial for maintaining a suitable temperature for life.


CO2 is the only greenhouse gas.


Ozone is a greenhouse gas.

Answer 1

The following statements are true about greenhouse gases emissions:

1. **Greenhouse gases occur naturally.** - True, as many greenhouse gases, such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), are produced through natural processes.

2. **Burning fossil fuels is the largest anthropogenic source of carbon dioxide.** - True, as the combustion of fossil fuels for energy and transportation is the primary human-made source of CO2 emissions.

3. **Greenhouse gases are crucial for maintaining a suitable temperature for life.** - True, as greenhouse gases trap heat in the atmosphere, keeping the Earth's temperature at a level that can support life.

4. **CO2 is the only greenhouse gas.** - False, as there are several other greenhouse gases, including methane (CH4), nitrous oxide (N2O), water vapor, and ozone.

5. **Ozone is a greenhouse gas.** - True, although ozone is more commonly associated with the stratospheric ozone layer, it does act as a greenhouse gas in the troposphere, contributing to warming.

In summary, the true statements are:
- Greenhouse gases occur naturally.
- Burning fossil fuels is the largest anthropogenic source of carbon dioxide.
- Greenhouse gases are crucial for maintaining a suitable temperature for life.
- Ozone is a greenhouse gas.