Write the answer of the following question (any five )
Answers
- Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions .
- A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work.
- Petrol , Food , Diesel , Speed .
Answer:
1) Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules etc.
2) material such as coal, gas, or oil that is burned to produce heat or power.
3) Toothpaste: Patanjali, Vicco,Babool, Dabur, Baidyanath, Anchor, Meswak.
Soaps: Patanjali, Margo, Nima, Nirma, Medimix, Himani, Godrej no. ...
Detergents & soap: Patanjali,, Ghadi, Nirma,Godrej, Fena, Hipolin, Doctor, Gentil.
4) Chemicals which help in increasing food production are fertilisers like urea sodium nitrate potash ammonium phosphate calcium nitrate etc. Pesticides like aldrin malathion which are used to kill pests. Insecticides like D.D.T. B.H.C. fungicides like sulphur bordeaux mixture etc.
6) the intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.
i hope this helps u!!