thuyet trinh tham hoa thien nhien

Contents include three parts Typhoon Volcano Tornadoes Typhoon Typhoon is plenty of atmosphere and is a kind of extreme weather In Vietnam, the term "typhoon" are understood as tropical storms, the weather is especially dangerous only appear on the tropical oceans, often with strong winds and heavy rains Volcano A volcano is an opening, or rupture, in a planet's surface or crust, which allows hot magma, ash and gases to escape from below the surface Tornado Tornado is a rotating column of air which is in contact with both the surface of the earth and Cumulonimbus cloud