alexandra.p

====** TOPIC 4: Describe how natural phenomena can affect climate (eg. Biosphere processes, volcanic eruptions, Coriolis effect, El Nino and La Nina) ** ====

=**__ Biosphere Processes __**=
 * ==== Plants take the gas carbon dioxide out of the atmosphere to make their own food. ====
 * ==== At night plants release some carbon dioxide, but take in more, then they put out. ====
 * ==== Plants can use the suns energy through photosynthesis, to release oxygen into the atmosphere. ====

__ Animals __

 * ====Farm animals' digestive processes can produce methane gas.====
 * ====Methane gas is a greenhouse gas. when it is released into the atmosphere it can absorb and emit radtion.====

__Factories and power plants.__

 * ====When fossil fuels such as oil, natural gas, and coal formed a million years ago. These fossil fuels are burned to make power for the factories and power plants. Then carbon dioxide gas is released into the atmosphere as these fossil fuels burn.====

__Cars and trucks__

 * ====Carbon dioxide is released into the air when fossil fuels like oil and gasoline are burned to power cars and trucks.====

__Fertilizers__

 * ====When fertilizers that humans use [fertilizers used for the garden] breakdown into the soil, then nitrous oxide is released into the atmosphere.====

__ Wildfires __

 * ====When a wildfire burns, carbon dioxide is released into the atmoshpere.====
 * ====If a smaller forest grows again in the same area, the same amount of carbon dioxide will be taken out of the atmosphere.====
 * ====Carbon dioxide is a greenhouse gas that can absorb and emit radtion.====
 * ==== All the ash particles that are thrown into the atmosphere are good at attracting/collecting water droplets ====

**__volcanic eruptions__**

 * ====Eruptions by volcanoes can release huge quantities of gas and fire debris into the atmosphere and other debris high into the stratosphere.====
 * ====The debris from the volcanic eruptions have been known to filter out a portion of the suns energy and can lower the earths temperature.====
 * ====Rain and lighting combined with ash from the volcanic eruptions can lead to power outages,breakdowns of communication, and disorientation.====

__**Coriolis effect**__

 * ====the Coriolis effect explains why winds circulate around high and low pressure systems====

**__El nino__**
 * ====El nino is also called southern oscillation, happens every three to six years. The warm weather from el nino would last for about a year. Excessive rain fall along the carbbean coasts. Pacific coasts remain dry.====

__**El nina**__

 * ====La nina happens in cooler weather and is lesser know then El nino.====

Biography

www.volcanoworld.wordpress.com www.enzinearticles.com www.wikipedia.org www.windows2universe.org