Prepared by -Vinod Kumar T.G.T. Science, J.N.V. Dibrugarh, Assam 1. PISA (C.C.T.) QUESTIONS- Time = 20 minutes Total marks=6 TOPIC- REFLECTION OF LIGHT Fig.1 […]
PISA (C.C.T.) QUESTIONS TOPIC- REFLECTION OF LIGHT Read More »
Q.1 What is/are true about micro-organisms? (a) They may survive in extreme conditions like +78 degree centigrade to -90 degree centigrade. (b) They may be round, cylindrical, oval, rectangular or variable in shape. (c) They are found in all the places of biosphere. (d) All of the above are true. Q.2 Which of the following
M.C.Qs Microorganisms: Friends or Foe? Class VIII Chapter 2 Read More »
Electric current is used to generate heat by ‘ heating element’ based electric appliances like- heater, electric bulb, hair dryer, immersion rod for heating water, toaster, electric press, glue gun, hair straighter, electric tea kettles, electric girdle, clothes dryers, fridge defrostrator etc. All these appliances work on principle of heating effect of current. The amount
PISA TOPIC- HEATING EFFECT OF CURRENT AND COMMON HEATING ELEMENTS Read More »
71 % of 71 % of the Earth is covered with water. This water is present in oceans, rivers, lakes, ice caps, glaciers, ground water and in the atmosphere. The water on the earth can be categorized into-Fresh water (2.5%) and saline or salty water (97.5%). The saline water is found in the oceans, sea,
PISA TOPIC: WATER- A PRECIOUS VITAL RESOURCE Read More »
Q.1 What the organisms which prepare food by their own are called as? (a) Autotrophs (b) Heterotrophs (c) Saprotrophs (d) Insectivores Q.2 “Chlorophylls’ are the green pigments found in leaves. What is the function of chlorophylls? (a) Absorption of carbon dioxide gas (b) Releasing of oxygen (c) Formation of carbohydrate (d) Absorption of
M.C.Qs Nutrition In Plants Part-I Chapter 1 Class VII , C.B.S.E. Read More »
Q.1 What is the practice of sowing seeds at random by hand is called? (a) Spreading (b) Dissemination (c) Broadcasting (d) Transplantation Q.2 Which among these is used for levelling of ploughed field? (a) Plough (b) Hoe (c) Cultivator (d) Leveller Q.3 Which among these is/are organic manure? (a) Compost (b) Green manure (c) Farmyard
M.C.Qs Crop Production and Management Chapter 1 Class VIII, C.B.S.E. Read More »
Objectives– Introduction; Symbols of Electric components in a circuit; Heating effect of current; Magnetic effect of current; Electromagnet; Electric bell Introduction– When we rub our dried hairs with a plastic ruler scale or comb and then bring this comb immediately near some small bits of paper, it starts attracting them. Why this happens so?
ELECTRIC CURRENT AND IT’S EFFECTS Class VII Chapter 14 Read More »