1. What are the natural causes of air pollution? 2. Which gas combines with haemoglobin of blood to form carboxyhaemoglobin? 3. Name any two greenhouse gases. 4. Name the particles that damage the ozone layer. 5. Name the types of filters used at homes for purification of water.
Answers
Answer:
1. (i)Dust and Wildfires
(ii)Volcanic Activity
2. Carbon monoxide
3.Carbon Dioxide
Methane
4. chlorine and bromine
5. Mechanical Filters.
Absorption Filters.
Sequestration Filters.
Ion Exchange Filters.
Reverse Osmosis Filters.
Explanation:
1.(i) In large areas of open land that have little to no vegetation, and are particularly dry due to a lack of precipitation, wind can naturally create dust storms. And the sun's heat can cause wildfires.
(ii)On land, volcanoes form when one tectonic plate moves under another. Usually a thin, heavy oceanic plate moves under a thicker continental plate. When enough magma builds up, it forces its way up to the surface and erupts, often causing volcanic eruptions.
2. Carbon monoxide combines with hemoglobin to form carboxyhemoglobin
4.When chlorine and bromine atoms come into contact with ozone in the stratosphere, they destroy ozone molecules. One chlorine atom can destroy over 1,00,000 ozone molecules before it can be removed.