2221. How did these things come ___?
✅ B. about
Author: Aurangzeb – Page 112
2222. International date line passes through which strait?
✅ C. Bering Strait
2223. Who invented bifocal eyeglasses?
✅ A. Benjamin Franklin
2224. Saliva contains_____?
✅ B. Amylases
2225. Malaria is a disease which effects the_______?
✅ C. Spleen
2226. Which is the Coldest Planet ?
✅ D. Neptune
2227. The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect
✅ C. Methane (CH4)
2228. The ‘stone’ formed in human kidney consist mostly of________?
✅ B. Calcium oxalate
2229. Which of the following does not pollute the air?
✅ B. Nitrogen Dioxide
2230. Laughing gas has chemical composition of following two elements ?
✅ C. Nitrogen + Oxygen