Basic Information of Daily Science Inventions and

201. Solar Energy is a--

• ক. renewable source of energy
• খ. very limited source of energy
• গ. non renewable source of energy
• ঘ. polluting source of energy

202. Which of the following is a main component of comon glass?

• ক. powdered mica
• খ. marble
• গ. water
• ঘ. sand

203. The shape of the earth is--

• ক. conical
• খ. cubical
• গ. flat
• ঘ. spherical

204. The earth rotates from---

• ক. south to north
• খ. west to east
• গ. east to west
• ঘ. north to south

205. Which is not a renewable resource of energy?

• ক. water
• খ. wind
• গ. petroleum
• ঘ. sun

206. How many teeth does an average human adult have?

• ক. 28
• খ. 29
• গ. 30
• ঘ. 31

207. What is the pulse rate of an average healthy human beings?

• ক. 100 beats per minute
• খ. 72 beats per minute
• গ. 65 beats per minute
• ঘ. 80 beats per minute

208. Which of the following are known as "aves"?

• ক. Mammals
• খ. Fish
• গ. Reptilies
• ঘ. Birds

209. What is the name given to the green pigment in plants?

• ক. tendrils
• খ. starch
• গ. stomata
• ঘ. chlorophyll

210. Quinine is obtained from the bark of which tree?

• ক. Bunyan
• খ. Cinchona
• গ. Redwood
• ঘ. Eucalyptus

211. Farmers can keep their soil fertile by--

• ক. Crop rotation
• খ. Regular tilling
• গ. Repeatedly growing the same crop
• ঘ. Irrigation

212. What is wuinine used for?

• ক. Removing pimples
• খ. Curing malaria
• গ. Curing aids
• ঘ. Curing typhoid

213. Bile is secreted by the---

• ক. Gall bladder
• খ. Lungs
• গ. Stomach
• ঘ. Liver

214. Which of the following carries malaria?

• ক. Bats
• খ. Earthworms
• গ. Mosquitoes
• ঘ. Cockroaches

215. Which of the following helps keep body cool?

• ক. Mastication
• খ. Urination
• গ. Perspiration
• ঘ. Respiration

216. The response of plants to light is known as--

• ক. Chemotropism
• খ. Thigmotropism
• গ. Phototropism
• ঘ. Hydrotropism

217. Which of the following is a parasite?

• ক. Ringworm
• খ. Wolves
• গ. Zebra
• ঘ. Pigs

218. Which food stuff turns blue-black when brought in contact with iodine?

• ক. Unsaturated fatty acids
• খ. Starch
• গ. Proteins
• ঘ. Vitamins

219. How many planets are there in our solar system?

• ক. 10
• খ. 12
• গ. 7
• ঘ. 9

220. What is the total number of bones in the human body?

• ক. 206
• খ. 512
• গ. 32
• ঘ. 196

221. Who wrote the book "The Origin of Species"?

• ক. Sir Alexander Fleming
• খ. Louis Pasteur
• গ. Charles Darwin
• ঘ. Stephen Hawking

222. Which of the following has an organic origin?

• ক. sand
• খ. bakelite
• গ. coal
• ঘ. nylon

223. Which planet is known as the red planet?

• ক. Mercury
• খ. Jupiter
• গ. Mars
• ঘ. Earth

224. The three methods of science are observation, experimentation and ----.

• ক. deduction
• খ. hypothesis
• গ. measurement
• ঘ. inference

225. Where is the sea of Tranquility?

• ক. In the pacific ocean
• খ. In the atlantic ocean
• গ. On the moon
• ঘ. Near the bermuda triangle