A. also decrease B. increase C. remains constant D. none of these The correct answer to the question: “For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________?” is “increase”.
A. 1 g/cm3 B. 1.5 g/cm3 C. 2 g/cm3 D. none of these
A. Kelvin B. Thomson C. Rutherford D. Bacquerel The correct answer to the question: “Radioactivity was discovered by __________?” is “Bacquerel”.
A. motor B. generator C. moving-coil meter D. battery Batteries are devices that convert stored chemical energy into useful electrical energy. It consists of a number of voltaic cells connected in series by a conductive electrolyte containing anions and cations. A battery may be thought of as a clever variant of a standard exothermic chemical … Read more
A. Nitrogen B. Carbon dioxide C. Methane D. Tetrafluoroethane Updated by: NoumaN Tetrafluoroethane: It is one of the commonly used refrigerant gases which you can find in almost all the present time refrigerators. This gas is condensed effectively so that it can cool down the surroundings of the machine without causing the problem of ozone … Read more
A. Star B. Planet C. Asteroid D. Meteor The correct answer to the question: “The Sun is a __________?” is “Star”.
A. 4 B. 5 C. 6 D. 7 The correct answer to the question: “The average adult has a blood volume of about __________ liters.” is “5”.
A. Oxygen B. Hydrogen C. Carbon Dioxide D. Silicon Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. The correct answer to the question: “The most abundant … Read more
A. Oxygen B. Hydrogen C. Carbon Dioxide D. Silicon Oxygen is the most abundant element in the earth’s crust and silicon is next. The correct answer to the question: “The most abundant element in the Earth’s crust is __________?” is “Oxygen”.
A. night blindness B. rickets C. scurvy D. hair fall The correct answer to the question: “Deficiency of Vitamin-D results in __________?” is “rickets”.