Question

Road, Hubli - 30<br />Nagar , Gokul<br />Sub.: Science - SA-I<br />Max. Marks: 80<br />Date: 15-12-2020<br />0-1 Each question carries 1 Mark<br />1) Which one is a chemical change-rusting of Iron or melting of fron?<br />2) Name the acid present in ant sting.<br />3) Which is a stronger acid, with pH = 5 or with pH=2?<br />4) A solution turns red litmus blue, its pH is likely to be<br />(b) 4 (c) 5 (d) 10<br />5) Which one of the following types of mediedes is used for treating Indigestion?<br />(a) Antibiotic (b) Analgesic (c) Antacid (d) Antiseptic<br />6) Name the metal which has very low melting point and can melt with heat of your palm?<br />7) Where does aerobic respiration occur a cell?<br />8) Name the tissues which (1) transport soluble products of photosynthesis plants, (ii) transport water and<br />minerals in a plant.<br />9) Name the component of blood which transport:<br />10 Food, carbon dioxide and nitrogenous wastes<br />Oxygen.<br />10) Name the part of the brain which controls posture and balance of the body.<br />11) Name the causative agent of the disease "Kala-azar" and its mode of asexual reproduction.<br />12) The first trophic level in a food chain is always a green plant. Why?<br />13) Name the two important non-metallic oxides which causes add rain:<br />14) What is Coliform?​

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