There are some broad mitigation techniques of landslide which are as follow:
(i) Hazard mapping to locate areas prone to landslides. Hence, such areas can be avoided for building settlements.
(ii) Construction of retention wall to stop land from slipping.
(iii) Increase in the vegetation cover to arrest landslide.

This landslide was triggered by intense blasting at Pangi village. It was a human factor which was responsible for this major landslide.

The given passage is about natural disaster or calamity, i.e. landslide.

Land use pattern is changing because of the following reasons:
(i) People started encroaching the common lands to build up commercial areas, housing complexes in the urban areas and to expand the agricutural land in rural areas.
(ii) Cultural changes which are taking place in our society.

We should conserve biodiversity because it is very important for all living organisms and for the environment. We should conserve biodiversity to save it from becoming extinct.

(i) Alluvial soil: It is formed with the silt brought by rivers during the course of their long journey. It contains adequate potash, lime and phosphoric acid. It is generally deficient in organic and nitrogenous content. Main crops : Rice, wheat, cotton, oilseeds and Sugarcane.
(ii) Black soil: It is formed by weathering of volcanic (basalt) rock formed by the Deccan lava. It is rich in lime, Iron, Potash, Magnesium, Alumina, Calcium, but lacks in nitrogen and humus. Main crops : Cotton, tobacco, oilseeds and sugarcane.
(iii) Red soil : It is formed with decomposition of metamorphic rocks. It is rich in iron but lacks in phosphorus, nitrogen, humus and lime. Main crops : Wheat, rice, cotton, pulses and sugarcane.
(iv) Laterite soil: It is formed by intense leaching due to heavy rains and is rich in iron, but is generally deficient in potassium, lime, silica phosphoric acid and nitrogen. Main crops: Coffee, Rubber and Cashew.
(v) Desert soil: It is formed by mechanical weathering of rocks from sands. High proportion of salt is there in the soil, but it is deficient in organic matter. Main corps : Wheat, bajra, melon and grams (through irrigation).
(vi) Mountain soil : It is formed mainly due to the deposition of organic matter, provided by the forests. This soil is rich in humus, but poor in potash, phosphorus and lime. It is heterogeneous in nature. Heavy doses of fertilisers have to be applied for high yields of crops. Main crops: Tea, coffee, spices and tropical fruits in Karnataka.

(i) The main cause of California fire was human fault. A child burnt a match stick and threw it carelessly.
(ii) It could have been avoided if the match was kept in safe custody of the family.

Rainwater harvesting is the accumulation and storage of rainwater for reuse before it reaches the aquifers under the ground. Uses include water for the garden, water for livestock water for irrigation.
The advantages of rainwater harvesting are as follows:
(i) It reduces the consumption of groundwater.
(ii) It is free from pollutants as well as salts, minerals and other natural and man-made contaminants.
(iii)  It is considered as the purest form of natural water.
(iv) The stored water is a reliable source of water when other sources dry up.