Science Class 5th
161. Burning of Kerosene causes air pollution:
A) True
B) False
162. The upper layer of atmosphere contains:
A) Carbon Dioxide
B) Ozone
C) CFC
D) Sulpher Dioxide
163. Ozone protects from UV rays.
A) True
B) False
164. ____________ is the main reason of Ozone depletion.
A) Land Pollution
B) Water Pollution
C) Air Pollution
D) All of the above
165. Cholera is caused by:
A) Land Pollution
B) Water Pollution
C) Air Pollution
D) None of the above
166. ENT Problems are caused by:
A) Drinking Polluted water
B) Breathing Polluted Air
C) Intake of land pollutants
D) none of the above
167. ______ material are degraded naturally.
A) Biodegradable
B) Non biodegradable
C) Both A and B
D) None of the above
168. Bio degradable material don’t cause pollution.
A) True
B) False
169. Material that cannot be degraded naturally.
A) Biodegradable
B) Non biodegradable
C) Both A and B
D) None of the above
170. Water Pollution is mostly caused by:
A) Animals
B) Trees
C) People
D) Birds
171. The main cause of air pollution is:
A) Burning of fuels
B) Forest
C) Fertilizers
D) Garbage
172. Which of the following is not a bio degradable material:
A) Dead Animals
B) Dead Plants
C) Plastics
D) Bread
173. Which of the following produces harmful gases:
A) Plants
B) Animals
C) Bacteria
D) Vehicles
174. Which of the following is bio degradable:
A) Cans
B) Glass
C) Dead Plants
D) Electricity wires
175. All physical objects are made up of matter.
A) True
B) False
176. Matter is anything that:
A) Has Mass
B) Occupies Space
C) Both A And B
D) None Of The Above
177. There are ______ basic states of matter.
A) Two
B) Three
C) Four
D) Ten
178. Solids have fixed ______.
A) Volume
B) Density
C) Mass
D) All of the above
179. The molecules are tightly packed in:
A) Solids
B) Liquids
C) Gases
D) Plasma
180. The molecules are closely packed together in solid because of:
A) High Mass
B) Attractive Forces
C) High Density
D) Fixed Places