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WELCOME TO EDUCATION TECHHz blog , SUBSCRIBE OUR YOUTUBE CHANNEL SUBSCRIBE OUR CHANNEL : CLICK HERE HERE , WE WILL UPLOAD CURRENT AFFAIRS DAILY DATE-WISE CURRENT AFFAIRS 18 AUGUST , 2020 RAKESH ASTHANA becomes new DG of BSF 19 AUGUUST,2020 The name of "HRD MINISTRY" changes to "MINISTRY OF EDUCATION" 20 AUGUST, 2020 Indian Foreign Secretary Harsh Shringla on his visit to Dhaka confirmed that Bangladesh will be a priority recipient once India gets the nod and starts the mass production of the COVID-19 vaccine. 21 AUGUST, 2020 US Senator Kamala Harris has become the first Indian American to accept nomination for the US Vice Presidential candidate for Democratic Party.  22 AUGUST,2020 Centre plans to procure 50 lakhs doses of COVID-19 vaccine in 1 st order. 23 AUGUST,2020 Rajiv Kumar is appointed the new Election Commisioner . He will take post on 31 August. 24 AUGUST,2020 NASA confirmed that the space rock which is expected to pass the Earth one day before the US Pres

2) The surface area of a cube whose edge equals to 3cm is: a. 62 sq.cm b. 30 sq.cm c. 54 sq.cm d. 90 sq.cm Answer/ Explanation 3) The surface area of cuboid-shaped box having length=80 cm, breadth=40cm and height=20cm is: a. 11200 sq.cm b. 13000 sq.cm c. 13400 sq.cm d. 12000 sq.cm Answer/ Explanation 4) The volume of hemisphere whose radius is r, is: a. 4/3 πr 3 b. 4πr 3 c. 2πr 3 d. ⅔ π r 3 Answer/ Explanation 5) If the radius of a cylinder is 4cm and height is 10cm, then total surface area of cylinder is: a. 440 sq.cm b. 352 sq.cm. c. 400 sq.cm d. 412 sq.cm Answer/ Explanation 6) The curved surface area of a right circular cylinder of height 14 cm is 88 cm 2 . The diameter of the base is: a. 2 cm b. 3cm c. 4cm d. 6cm Answer/ Explanation 7) The Curved surface area of a right circular cylinder is 4.4 sq.cm. The radius of the base is 0.7 cm. The height of cylinder will be: a. 2 cm b. 3 cm c. 1 cm d. 1.5 cm Answer/ Explanation 8) Diameter of the base of a cone is 10.5 cm and its slant hei

WELCOME TO EDUCATION TECHz blog , SUBSCRIBE OUR YOUTUBE CHANNEL LINK OF YOUTUBE CHANNEL: CLICK HERE TO SUBSCRIBE   Question 1:  Which of the following is responsible for the variation in the colour of soil in different parts of India? (a) Difference in rock formations                                (b) Weathering (c) Erosion and deposition                                            (d) Land use Question 2:  Which of the following has not been a factor in the creation and modification of India’s relief features? (a) Geological formations                                             (b) Population density (c) Weathering                                                                (d) Erosion and deposition Question 3: Which  of the following is a plausible theory presented by Earth scientists to explain the formation of continents and oceans and the various landforms? (a) Theory of Motion      (b) Theory of Plate Tectonics  (c) Theory of Evolution   (d) Theory of Relativity Question 4: