2301. A convex mirror always ______ ?
✅
Author: Aurangzeb – Page 116
2302. Which of the following vitamins is synthesized in the body by intestinal bacteria__?
✅ D. Vitamins K
2303. In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as_______?
✅ C. Galvanization
2304. Blood which heart pumps to lungs is_____?
✅ B. deoxygenated blood
2305. Which instrument is used to measure the power of electric circuit ?
✅ C. Wattmeter
2306. Alzheimer’s disease in human beings is characterized by the degeneration of __
✅ A. Nerve cells
2307. Sound travels about ______times faster in water than in air.
✅ C. 4
2308. The study of rearing fine and intelligent human beings through genetics is called_____?
✅ B. Eugenics
2309. The distance of mercury from sun is_____?
✅ A. 57.9 million km
2310. Approximate age of moon is ____?
✅ C. 4.53 billion years