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1 day ago · Most of Earth's weather and air pollution resides in the troposphere, the part of the atmosphere that extends from the surface of the planet to a height of about 10 kilometers (6 mi). The vertical lift of a severe thunderstorm or pyrocumulonimbus can be enhanced in the area of a large wildfire, which can propel smoke, soot ( black carbon ), and other particulate matter as high as the lower ...
3 hours ago · Sierra Leone, (/ siˌɛrəliˈoʊn (i)/ ⓘ, also UK: / siˌɛərə -/, US: / ˌsɪərə -/; [ 8 ][ 9 ] Krio: Salone[ 10 ]) officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north.
1 day ago · Without proper rendering support, you may see question marks, boxes, or other symbols. Tehran[6] (/ tɛəˈræn, - ˈrɑːn, ˌteɪ -/; Persian: تهران Tehrân [tehˈɾɒːn] ⓘ) is the capital [7] and largest city of Iran and also the largest city in Tehran Province. It also serves as the capital of the Province, county and the Central ...
