Naturally, disasters refer to the negative effects of naturally occurring phenomena. Naturally occurring phenomenal at home and population, agriculture, or environment. Call ringer somebody Natalie occurring phenomenon.
1.Volcanism
- Landslide
- Desertification
Therefore the study of natural disasters is important for the safety of human beings and their environment. In Pakistan, National Disaster Management Authority (NADMA) has been mandated to need disaster management activities, including issuance warnings, management, mitigation, prevention, and relief to the affected areas.
1.Volcanism.
Ejection of Molten rocks(lava), hot, dry rock fragments, and hot gases from volcanoes are termed volcanism. Different types of materials ejected drawing volcanism is caused destructions in the surrounding area of a volcano.
Let us know Navdeep's basic characteristics of volcanic materials.
1.Lava flowing out of a volcano's vent moves slowly, and it can move to long distances.
2.Hot, dry Rocky fragments coming out of a vent of the volcano moves at high speed.
- 3.Fragments of love and Rocky materials are termed as Tephra. During an explosive volcanic activity, Tephra moves very high into the air.
4.Very fine-sized fragments of Rocky materials and lava are also blown into air drying and explosive volcanic eruption.
- Gases coming out of a volcano enter the atmosphere.
Impacts of Volcanism.
Moving lava usually destroys everything coming in its way. Its slow movement lets people get out of its way. Hot, dry fragments move very fast due to hotness. They burn vegetation and houses. All structures and objects on the way are destroyed. Tephra endangers life and property by the force it falls on the surface of the earth.
Automobile engines are damaged by volcanic Ash because it can infiltrate into automobile engines. Mobility on Ash-covered roads becomes difficult on wet days.
Gases added to the air by volcanic activities cause difficulties in breathing. The impact of volcanic activities is commonly observed in Japan and the Philippines etc.
Safety Measures.
Following safety measures should be followed to save life and property in volcanic risk areas.
- Follow the instructions issued by the authorities.
2.Avoid the areas suspecting the floor of lava.
3.Stay Indore during the volcanic activity.
4.After a volcanic eruption, keep your mouth and nose covered by a mask to protect the respiratory system from the volcanic Ash.
5.Immediately remove ads from housetop to avoid our house collapse.
2.Landslides.
Landslide is downslope movement of large message of Rock and soil under the gravitational pull of the earth. This movement of material may take place in the form of fall slide or flow.
Landslides are significant natural disasters in the northern and western mountainous regions of Pakistan. Landslide are usually initiated by heavy rains by an earthquake or a volcanic activity. Human activities like cuttingof rocks along the steep slope for the construction of roads and settlements also cause landslides.
Landslide Mitigation.
Following measures are necessary to reduce the severity of the landslide effects.
1.Construction must be discouraged in landslide areas, particularly along the steep slopes.
2.Surface drainage may be controlled.
3.Retaining may be constructed along a steep slope to enhance the stability of the slope.
Impacts of Landslides.
Sometimes a landslide may block our steam to form a lake. Landslide usually affects everything that comes under its way, particularly early effect roads and houses. They cause damaged roads, water channels, and settlements, particularly on rainy days.
Safety Measures.
One should have some information about landside areas, particularly before traveling into such areas. Knowledge of the landslide symbol would be of good use. Avoid traveling in landslide areas before and after rain.
3.Desertification.
Decertification is the process by which soil becomes soil infertile. The productivity of the soil is reduced, and it becomes barren.
Causes Of Desertification.
Basic reasons of the certification in played both climate change and human activities.Areas lying adjacent to the deserts having rainfall less than 500 mm have high chances of becoming desert. Other important reasons are overgrazing by the animal's removal of vegetation for fuelwood construction material for human settlements.
Measures to Check Desertification.
All countries are required to take some immediate steps to protect themselves from the heat of desertification.
1. Overuse of the soil must be stopped, and crop rotation should be ensured to revive the strength of the soil.
2.Population increase must be controlled.
3.Expansion of settlement should not be done at the cost of vegetative cover and cultivable land.
Impacts of Desertification.
Desertification reduces the ability of soil to produce and sport population. Plant Cover is reduced and resultantly soil for love victim to wind and water erosion. Most Importantly, rainfall is decreased.
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