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 MATTER AND ITS STATES MATTER Matter is anything which has mass and occupies space. It exists in five states, viz, solid, liquid,gas, plasma condensate. Out of which the former three are commonly seen.   :- States of Matter The five states of matter are discussed below 1:- Solids They have definite volume and definite shape They are incompressible and have strongest intermolecular interactions. They are very dense as compared to liquidarnd gasS. e.g., WOOd, stone, iron, etc. ** Melting Point It is a temperature at which a substance converts from its solid state to liquid state. Melting point of tce IS O°C Melting point decreases in the presence of impurity. **Sublimation It is the process of conversion of a substance from the solid state to the gas state without intermediate liquid phase passing through an intermediate liquid phase. It is used to separate a sublimation (substance undergoing sublimation liked camphor, naphthalene,ammonium chloride, etc) from non-sublimate. 2:- ...

  List of Important National Parks in India     Protected areas of India These are defined according to the guidelines prescribed by IUCN (International Union for Conservation of Nature). There are mainly four types of protected areas which are: (a) National Park (b) Wildlife Sanctuaries (c) Conservation reserves (d) Community reserves (a) National Parks  There are 104 national parks in India. First national park in India-  Jim Corbett National Park (previously known as Hailey National Park) No human activity/ rights allowed except for the ones permitted by the Chief Wildlife Warden of the state. It covered 1.23 percent geographical area of India Recently, in July 2020 Assam government decided to upgrade the  Dehing Patkai Wildlife Sanctuary  into National Park. (b) Wildlife Sanctuaries There are 543 wildlife sanctuaries in India. It covered 3.62 percent geographical area of India (c) Conservation reserves These categories added in the Wildlife (P...

Good morning dear students 1. Alpha-keratin is a protein present in which thing? 2. Where was the first session of the Constituent Assembly held? 3. Which of the following is used as ‘a moderator in nuclear reactor? 4. Which planet looks reddish in the night sky? 5. What was the source of the blue gem stone, lapis lazuli, for the people of Harappan culture? 6. Sachin Tendulkar scored his 100th international century against which’ country ? 7. In baseball, the two opposing teams consist of howmany players? 8. The improper function of which results in condition ‘Myxedema’ in human beings? 9. In 1610, Galileo Galilei discovered four moons of which planet? 10. In the Vedic society, which was the term used to denote a group of families? 11. Who was the Chairman’ of the Union Constitution Committee of the Constituent Assembly? 12. Which element that does not occur in nature but can be produced artificially? 13. When had India a plan holiday? 14. How are Latitude and Longitude? 15. Which Phil...

  Rivers & Drainage System of India The flow of water through channels is called drainage. The network of such channels is known as drainage system. On the basis of origin, Indian drainage system is divided into – Himalayan rivers and Peninsular rivers. I. Himalayan Rivers The major Himalayan rivers are the Ganga, the Indus and the Brahmaputra. These rivers are very long compared to the rivers of South India. They are called perennial rivers as they are fed by both rainfall and the melting of snow. 1. Indus River System It is also known as Sindhu river. Total length is 2880 km. Source – Kailash Range, Tibet near Mansarovar Lake. Destination – Arabian Sea. Panchnad – Jhelum (Vitasta), Chenab (Chandrabhaga), Ravi (Iravati), Beas (Bipasha) and Sutlej (Satadru). RIVER SOURCE DAMS/HYDRO PROJECT Jhelum Verinag Uri Chenub Bara Lacha Pass Dul Hasti Ravi Rohtang Pass – Beas Rohtang Pass – Sultuj Near Mansarovar Govind Sagar/Bhakra Nangal Dam 2.Ganga River System Source – Gangotri glacie...

Stages of soil we views : Solid soil Soil with air in the pores Soil with water in the pores There are various types of soil that undergo diverse environmental pressures. Soil is mainly classified by its texture, proportions and different forms of organic and mineral compositions. Types of Soil   Four types of soil: Sandy soil. Silt Soil. Clay Soil. Loamy Soil. 1:- Sandy Soil The first type of soil is sand. It consists of small particles of weathered rock. Sandy soils are one of the poorest types of soil for growing plants because it has very low nutrients and poor water holding capacity, which makes it hard for the plant’s roots to absorb water. This type of soil is very good for the drainage system. Sandy soil is usually formed by the breakdown or fragmentation of rocks like granite, limestone and quartz. 2:- Silt Soil Silt, which is known to have much smaller particles compared to sandy soil and is made up of rock and other mineral particles, which are smaller than sand and larg...