The document summarizes different types of natural disasters: 1) Forest fires spread outward from an ignition point, leaving burned forest behind, and can burn on the surface or rise into tree crowns. 2) Tornadoes are violently rotating columns of air in contact with the ground, often visible as a funnel cloud. 3) Earthquakes result from a sudden release of energy in the Earth's crust, creating seismic waves and shaking the ground.

1. Natural Disaster Alejandro Mota 947431 Eduardo Maldonado 947388 Jafar mansur 947469 Estefanía de Alba 949131 Jesús Padilla Mena 1230716 Gerardo Gonzalez 947389

2. A forest fire is a moving combustion reaction, spreading outwards in a band from its ignition point, leaving burned out forest behind it. Forest fires are classed mainly according to whether they remain on the ground surface or rise into the tree crowns. Combustible matter in surface fires includes leaf litter, dry moss and lichen, dead grass, decomposing humus, dead or rotting wood, and live brush and herbs. Forest Fire

3. Tornado A violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud, and often (but not always) is visible as a funnel cloud.

5. Hurricanes A tropical cyclone or an hurricane is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. when moist air rises, resulting in condensation of water vapor contained in the moist air.

6. Volcanic Eruptions An eruption begins when pressure on a magma chamber forces magma up through the conduit and out the volcano's vents. When the magma chamber has been completely filled, the type of eruption partly depends on the amount of gases and silica in the magma. The amount of silica determines how sticky the magma is and water provides the explosive potential of steam.