2821. Bleaching action of chlorine is by___?
✅ B. Oxidation
Author: Aurangzeb – Page 142
2822. The dominant phase of life cycle in these organism is haploid?
✅ B. Mosses
2823. Summer solstice means_____?
✅
2824. Which of the following mixture of gases is required in gas welding?
✅ C. Acetylene and oxygen
2825. An element that does not occur in nature but can be produced artificially is_____?
✅ B. Plutonium
2826. Inside which organ is the gallbladder located?
✅ A. Liver
2827. The study of organisms and their environment is known as ___?
✅ A. Ecology
2828. The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ___?
✅ C. 56 ft
2829. The lowest region of the earth’s atmosphere comes between the earth and stratosphere. what is this region’s name?
✅
2830. The ratio of pure gold in 18 carat gold is _____?
✅ D. 0.75