141. The human brain uses_____ percent of the total oxygen and blood in the body?
✅ B. 20
Author: Aurangzeb – Page 8
142. Bromine is a_________?
✅ A. red-brown liquid
143. The ozone layer is at height of___kilometers from the surface of the Earth?
✅ A. 20 to 30
144. The study of fish is known as ___?
✅ A. Ichthyology
145. Which planet is much brighter in our solar system?
✅ A. Venus
146. Which of the following is used in water purification?
✅ B. Reverse Osmosis
147. Black gold is an oil; Black diamond is____?
✅ C. Coal
148. The species that flower are called ____?
✅ C. Angiosperms
149. She took lessons ___ how to swim.
✅ C. to learn
150. I am looking for admission ___ in a government or private university.
✅ C. either