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