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Are humans more dangerous to the world then natural disasters?

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WEEK 2:
​​DIFFERENT TYPES OF NATURAL DISASTERS ?
Earthquakes, Volcanos, Floods, Droughts,Pest plauges, Dust storms, Tsunamis, Bushfires, Lanslides, Mudslides, Avalanches, Blizzards, Tornados, Hurricans, Cyclones, Typhoons, Linmic eruptions, Hailstorms, Heat waves, Title waves, Pyrocladtic flow, Ice storms, Sink holes.
QUESTIONS?
1. What do you think is the scariest natural disaster?why?
2. If you had your family in a cyclone area what would you do?
3.What do you think a avalanche is?
GO TO MY DISCUSSION PAGE TO DISCUSS THESE QUESTIONS!

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WHAT DO WE USE TO CLARIFY DISASTERS AND HOW THEY ARE MEASURED? To clarify a natural disaster you have to use the Holzmann's formula so you times the hazard with the vunerability and divde it with capacity. Nature and scope is a risk for the disaster reduction. 'hazard, disaster, vunerability and capacity'.
WEEK 5:
WHAT ARE THE LAYERS OF EARTHS STRUCTURE?
The core
The inner part of the earth is the core. This part of the earth is about 1,800 miles depth belo the earth's surface. The core is a dense ball of the elements iron and nickel. It is divided into two layers, the inner core and the outer core. The inner core - the center of earth - is solid and about 780 miles thick. The outer core is so hot that the metal is always molten, but the inner core pressures are so great that it cannot melt, even though temperatures there reach 6700ΒΊ Farren height, the outer core is about 1370 miles thick. Because the earth rotates, the outer core spins around the inner core and that causes the earth's magnetism.
The mantle
The layer above the core is the mantle. It begins about 6 miles below the oceanic crust and about 19 miles below the continental crust. The mantle is to divide into the inner mantle and the outer mantle. It is about 1,800 miles thick and makes up nearly 80 percent of the Earth's total volume.
The crust
The crust lays above the mantle and is the earth's hard outer shell, the surface on which we are living. In relation with the other layers the crust is much thinner. It floats upon the softer, denser mantle. The crust is made up of solid material but these material is not everywhere the same. There is an Oceanic crust and a Continental crust. The first one is about 4-7 miles thick and consists of heavy rocks, like basalt. The Continental crust is thicker than the Oceanic crust, about 19 miles thick. It is mainly made up of light material, like granite.
WHAT RESOURCES DO WE USE FROM BENEATH THE EARTH?
Minerals, oil, gold, gems, water, iron, silver, copper, coal, diamonds, bore water, metals, steel, aluminium.

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WEEK 6:

WHAT ARE THE DIFFERENT ATMOSPHERE LAYERS ABOVE US AND WHAT AFFECT DOES THE MOON AND SUN HAVE ON THE EARTH?
The atmosphere
The earth is surrounded by all kind of gases. This layer is called the earth's atmosphere. Without these atmosphere life on earth isn't possible. The atmosphere gives us air, water, warmth and is protecting us against harmful rays of the sun and against meteorites. This layer around the earth is a colorless, odorless, tasteless 'sea' of gases, water and fine dust. The atmosphere is made up of different layers with different qualities. It consists of 78% nitrogen, 21% oxygen, 93% argon, 03% carbon dioxide and 04% of other gases. The Troposphere is the layer where the weather happens, above this layer is the Stratosphere. Within the Stratosphere is the Ozone layer, that absorbs the Sun's harmful ultraviolet rays. Above the Stratosphere is the Mesosphere, the Thermosphere - in which the Ionosphere - and the Exosphere. The atmosphere is about 500 miles thick.
The moon and sun
The sun and the moon both have their influence on the earth. Sometimes they cooperate and sometimes they counteract each other. Such influences are: the gravity, the warmth of the sun, the sunlight and the chronology. Through the gravitational force of the earth the moon orbits the earth. The moon also gravitates the earth, but less powerful. By the way gravity pulls the Earth and Moon toward each other, tides are caused (high tide and low tide). The sun also has some influence here. The sun brings light and is also responsible for the warming up of the earth. With the sun and moon they make eclipses and the lunar eclipse happen up to 6 months to 2 years.


2004 Total Lunar Eclipse
2004 Total Lunar Eclipse
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2000 Total Lunar Eclipse Sequence
2000 Total Lunar Eclipse Sequence

WEEK 7:
HOW CAN THE SOLAR SYSTEM AFFECT US?
Well, in habitats of planet Earth, we are part of it. The Earth formed when all the other planets did. The whole system was once one big disk of gas and dust, with a baby sun in the center. Gradually, the matter merged to form the planets. One of them struck the Earth very early on, and the debris from it and the Earth formed a ring, which became the Moon. Comets crashed on the Earth's surface and grazed its atmosphere, dropping all the water we have today, making life itself possible. The Sun drives the chemical reactions here, including those that make life possible. But it can also threaten humans, with solar flares. Another danger from space is an asteroid strike.
WEEK 8:
HOW DO HUMANS AFFECT NATURE?
1. Large amout of greenhouse of gas have ben let out and is making the earth get warmer and warmer that ice burges will keep droping and make the sea level rise and then the sea will be covering everything and it will all be gone.
2. Every human being will litter, and with that there is too much rubbish and it is polluting the earth, and it is killing sea life because the rubbish goes down the drain into the ocean and not only us it killing sea life it is killing land animals aswell.
3. Tearing down the forest for paper when they are risking the chances of there life because they are of getting rid of the oxegon the tree has held for millions of years. It also is killing the habitats of all different animals.
4. Dumping plastics and radio active technoligys which cause pollution and also greenhouse gas.
5. Building factories, driving cars, houses going up and buildings going everywhere it kills the forests, animals and there habitat and flock and cattle because they are tearing down farming land and taking over it.
HOW HAS HUMANS USE OF LAND CAUSED PROBLEMS?
The problem of land resources under stress has physical, social and political causes. At the national level, short-term political gains have often been made at the expense of long-term that buildings and houses are increasing into environmental damage. Decision-makers often face inordinately difficult decisions when trying to increase production to alleviate poverty and feed people and at the same time conserve resources to stave off environmental degradation. Often the decision-makers forfeit long-term sustainability for immediate needs. This also holds true for the subsistence level land users who have little choice but to seek immediate benefits for survival. Frequently technologies to manage such areas in a sustainable way are simply not available, or the land users do not have access to them due to lack of information or resources. However, a key factor is the role of human institutions and land use policies that must have to face the challenge posed by these rapidly changing conditions.