Question

Write the causes of the following :
(a) Floods
(b) Forest fires
(c) Land slides/building collapse
(d) Storms
(e) Earthquakes

Answer 1

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Here's your answer!!

a) floods- Flooding may occur as an overflow of water from water bodies, such as a river,lake, or ocean, in which the water overtops or breaks levees, resulting in some of that water escaping its usual boundaries, or it may occur due to an accumulation of rainwater on saturated ground in an areal flood.

b) forest fires- Forest fires always start by one of two ways - naturally caused or human caused. Natural fires are generally started by lightning, with a very small percentage started by spontaneous combustion of dry fuel such as sawdust and leaves. On the other hand, human-caused fires can be due to any number of reasons. Some classifications include smoking, recreation, equipment, and miscellaneous

c) land slides- the action of gravity is the primary driving force for a landslide to occur, there are other contributing factors affecting slope stability.

d) storms- Storms occur because air, moisture, and heat are almost always in motion, due to a lack of equilibrium. When an air parcel (a local region of air with uniform properties) is relatively warm and moist, it ascends because it is lighter than surrounding air.

e) earthquakes- Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake. When two blocks of rock or two plates are rubbing against each other, they stick a little. They don't just slide smoothly; the rocks catch on each other. The rocks are still pushing against each other, but not moving.

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Answer 2

The causes are described below :

(a) Floods

Heavy rain that is continuing for many days may lead to flood.

Also, overflowing of river may also lead to flood.

(b) Forest fires

The major cause of forest fire is due to lighting.

Also, when the temperature of our Earth becomes high, then there is a chance of causing forest fire.

(c) Land slides

Weathering and erosion causes land slides.

(d) Storms

When two fronts, warm and cold ones, collide, it results in storm.

(e) Earthquakes

Sudden movements in the crust of Earth.