•The script used by Harappans was not alphabetical as it has too many sings. •The availability of the script on a wide variety of objects indicates that probably many people were literate.
site year of excavation Leader of excavation Harappa 1921 Daya Ram Sahni, Mohenjo-Daro 1922 R.D. Banerjee, Chanhudaro 1931 N.G. Mazumdar, Kalibagan 1953 B.B. Lal, and A.N. Ghosh, Kot Diji 1955 Fazal Ahmad Khan, Lothal 1957 S.R. Rao, Surkotada 1972 J.P.joshi, 1990-91 R. S. Bisht
Solution Blood pressure Definition The force that blood exerts against the wall of a vessel is called blood pressure. This pressure is much greater in arteries than in veins. The pressure of blood inside the artery during ventricular systole (contraction) is called systolic pressure and pressure in the artery during ventricular diastole (relaxation) is called …
Solution : Pneumatophores Plants that grow in salty environments have unique roots known as on. These are roots with many pores on their surface that are arising from the water’s surface
Solution : Fermentation is a commercially important process. It is following processes:i. Curing of tea leaves, tobacco, etc.ii. Manufacture of vinegar,iii. an industrially important compound, the Creation of yoghurt, pickles, bread, and other bakery and culinary products.iv. Production of alcoholic biofuels and other beverages such as beer, wine, liquors, and ethyl alcohol.v. Tanning of leather.vi …
Solution : (a) takes place in yeast during fermentation
Solution : (a) ( i ) Unused carbohydrates are stored in plants as starch, a complex sugar. When energy is required, they are later converted into simple sugars (glucose). (ii) The molecules of the food that are absorbed contain energy in their chemical bonds. Oxidation in the cell releases the bond energy between them. To create …
Solution : (a) Peristaltic movement is the relaxing of the gut muscles to move the partially digested food throughout the alimentary canal downward. (b) The stomata of desert plants open at night to absorb carbon dioxide (CO2). To stop water loss through transpiration, stomata are closed during the day. To continue photosynthesis during the day, …
Solution : The stomata, or openings in the leaves, are typically found on the lower surface of the leaves. Gases and water vapour easily diffuse in and out through the stomata. The oxygen enters the leaf cells by diffusing through the stomata.Similarly, the stomata allow the carbon dioxide that the leaf cells produce to escape.
Solution : Gaseous exchange occurs throughout the entire plant, including the general surface of the roots, lenticels in the stem, and stomata on the leaves.
