Sociology, asked by vanishasaxena09, 6 months ago

jo class 10th m h CBSE board kon kon se chapter delete hua h all subjects m ​

Answers

Answered by unicorn276
8

Answer:

Explanation:

Unit I: Chemical Substances - Nature and Behaviour

          Chapter

Topics

Metals and Non-metals

Basic metallurgical processes; Corrosion and its prevention.

Carbon Compounds

Nomenclature of carbon compounds containing functional groups (halogens, alcohol, ketones, aldehydes, alkanes and alkynes), difference between saturated hydro carbons and unsaturated hydrocarbons. Chemical properties of carbon compounds (combustion, oxidation, addition and substitution reaction). Ethanol and Ethanoic acid (only properties and uses), soaps and detergents.

Unit II: World of Living

          Chapter

Topics

Control and co-ordination in animals and plants

(Whole Chapter Removed)

Tropic movements in plants; Introduction of plant hormones; Control and co-ordination in animals: Nervous system; Voluntary, involuntary and reflex action; Chemical co-ordination: animal hormones

Heredity and Evolution

Basic concepts of evolution

Unit III: Natural Phenomena

          Chapter

Topics

The Human Eye and the Colourful World

Functioning of a lens in human eye, defects of vision and their corrections, applications of spherical mirrors and lenses

Unit IV: Effects of Current

          Chapter

Topics

Magnetic Effects of Current :

Electric Generator, Direct current.

Alternating current: frequency of AC, Advantage of AC over DC.

Domestic electric circuits

Unit V: Natural Resources

          Chapter

Topics

Sources of Energy

(Whole Chapter Deleted)

Different forms of energy, conventional and non-conventional sources of energy: Fossil fuels, solar energy; biogas; wind, water and tidal energy; Nuclear energy. Renewable versus non-renewable sources of Energy.

Management of Natural Resources

(This chapter is to be prepared only for Internal Assessment. It will not be assessed in the Annual Board Examination)

Conservation and judicious use of natural resources. Forest and wild life; Coal and Petroleum conservation. Examples of people’s participation for conservation of natural resources. Big dams: advantages and limitations; alternatives, if any. Water harvesting. Sustainability of natural resources.

Answered by hotiepie32
8

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