MCQOPTIONS
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MCQOPTIONS
This section includes 532 Mcqs, each offering curated multiple-choice questions to sharpen your Grade8 knowledge and support exam preparation. Choose a topic below to get started.
| 351. |
Metamorphic rocks are usually |
| A. | morphed |
| B. | compacted |
| C. | layered |
| D. | clustered |
| Answer» B. compacted | |
| 352. |
Rock which is composed of sand-sized pallets of calcium carbonate formed in shallow water is |
| A. | shelly limestone |
| B. | chalk |
| C. | oolitic limestone |
| D. | all of them |
| Answer» D. all of them | |
| 353. |
A stone which is used to sooth skin is glassy volcanic rock formed from lava froth is |
| A. | obsidian |
| B. | pumice |
| C. | basalt |
| D. | granite |
| Answer» C. basalt | |
| 354. |
Madagascar rosy periwinkle is used in the treatment of |
| A. | blood cancer |
| B. | AIDS |
| C. | Hepatitis |
| D. | polio |
| Answer» B. AIDS | |
| 355. |
Clearing forest can lead to washing away of soil called |
| A. | erosion |
| B. | landslides |
| C. | weathering |
| D. | all of them |
| Answer» B. landslides | |
| 356. |
A global phenomenon involving the warming of earth's climate is termed as |
| A. | global warming |
| B. | greenhouse effect |
| C. | over-exploitation |
| D. | pollution |
| Answer» B. greenhouse effect | |
| 357. |
Marine animals specially fish when live in factory discharged waste water tends to get poisonous for humans and can cause |
| A. | death |
| B. | diseases |
| C. | both a and b |
| D. | development |
| Answer» D. development | |
| 358. |
Over-exploitation includes excessive |
| A. | energy usage |
| B. | hunting |
| C. | both a and b |
| D. | plantation |
| Answer» D. plantation | |
| 359. |
The things which are thrown away after one use are called |
| A. | disposables |
| B. | recycle able |
| C. | reduce able |
| D. | reusable |
| Answer» B. recycle able | |
| 360. |
The cell wall of yeast is made up of |
| A. | chitin |
| B. | cellulose |
| C. | water |
| D. | salts |
| Answer» B. cellulose | |
| 361. |
The examples of microscopic organisms are |
| A. | bacteria |
| B. | micro-scopic fungi |
| C. | both a and b |
| D. | virus |
| Answer» D. virus | |
| 362. |
Most of bacteria in food is killed in stomach by |
| A. | HCl |
| B. | NaCl |
| C. | HNO |
| D. | H2O |
| Answer» B. NaCl | |
| 363. |
The human skin is tough and water proof and germs cannot |
| A. | penetrate through |
| B. | stay on it |
| C. | reproduce |
| D. | enter from cut |
| Answer» B. stay on it | |
| 364. |
Germs on living things can be killed by using |
| A. | antiseptic |
| B. | disinfectants |
| C. | both a and b |
| D. | antibiotics |
| Answer» B. disinfectants | |
| 365. |
An instrument which enables us to see objects which are not in our direct line of sight is called |
| A. | microscope |
| B. | telescope |
| C. | kaleidoscope |
| D. | periscope |
| Answer» E. | |
| 366. |
To observe traffic while driving we use |
| A. | windscreen |
| B. | rear-view mirror |
| C. | seat belt |
| D. | gear |
| Answer» C. seat belt | |
| 367. |
Rafflesia blooms while helping in pollination with a smell of |
| A. | rotting meat |
| B. | flowers |
| C. | acid |
| D. | fruits |
| Answer» B. flowers | |
| 368. |
Lions, leopard and eagles depend on other animals for their food and are called |
| A. | herbivores |
| B. | carnivores |
| C. | omnivores |
| D. | ovivores |
| Answer» C. omnivores | |
| 369. |
Rafflesia is a parasitic plant found in tropical rainforest of |
| A. | South east Asia |
| B. | North America |
| C. | South America |
| D. | Antarctica |
| Answer» B. North America | |
| 370. |
Living things which can prepare their own food and do not depend on other living things for food are called |
| A. | produces |
| B. | consumers |
| C. | decomposer |
| D. | parasites |
| Answer» B. consumers | |
| 371. |
Desert which is very hot in day and becomes very cold at night is |
| A. | Sahara desert |
| B. | thar desert |
| C. | thal desert |
| D. | all of them |
| Answer» B. thar desert | |
| 372. |
Fungal infections in plants includes |
| A. | rust |
| B. | mildew |
| C. | blight |
| D. | all of them |
| Answer» E. | |
| 373. |
An infection which is characterized by ringed shaped itchy and scaly patches on skin is called |
| A. | ringworm |
| B. | leprosy |
| C. | mildew |
| D. | rust |
| Answer» B. leprosy | |
| 374. |
Permanent damage to skin, nerves, limbs and eyes if they are left untreated occurs in |
| A. | leprosy |
| B. | typhoid |
| C. | cholera |
| D. | rubella |
| Answer» B. typhoid | |
| 375. |
Penicillium is used to treat infections which are |
| A. | viral |
| B. | bacterial |
| C. | fungal |
| D. | yeast |
| Answer» C. fungal | |
| 376. |
The first antibiotic which was discovered by |
| A. | Alexander Fleming |
| B. | Lewis |
| C. | Thomson |
| D. | Lois Pasteur |
| Answer» B. Lewis | |
| 377. |
Animals within same specie compete with one another for |
| A. | mates |
| B. | territories |
| C. | both a and b |
| D. | food |
| Answer» D. food | |
| 378. |
In a habitat organism |
| A. | live |
| B. | reproduce |
| C. | both a and b |
| D. | hunt |
| Answer» D. hunt | |
| 379. |
Animal which is famous for being master of disguise is |
| A. | chameleon |
| B. | scarlet snake |
| C. | viceroy butterfly |
| D. | bald eagle |
| Answer» B. scarlet snake | |
| 380. |
PH in soil affects the |
| A. | plants |
| B. | animals |
| C. | birds |
| D. | humans |
| Answer» B. animals | |
| 381. |
Factors which surrounds an organism affecting its growth, development and survival make up the |
| A. | diversity |
| B. | biodiversity |
| C. | environment |
| D. | culture |
| Answer» D. culture | |
| 382. |
Like poles have force called |
| A. | attraction |
| B. | repulsion |
| C. | no force |
| D. | constant force |
| Answer» C. no force | |
| 383. |
Examples of magnets includes |
| A. | Magnalock |
| B. | door-stopper |
| C. | fridge door |
| D. | all of them |
| Answer» E. | |
| 384. |
An instrument which uses magnet to give direction is known as |
| A. | compass |
| B. | motor |
| C. | vacuum cleaner |
| D. | Magna lock |
| Answer» B. motor | |
| 385. |
Alnico is composed of iron |
| A. | nickel |
| B. | cobalt |
| C. | aluminum |
| D. | all of them |
| Answer» E. | |
| 386. |
The parts of magnet which are concentrated in attraction or repulsion are called |
| A. | poles |
| B. | corners |
| C. | fields |
| D. | borders |
| Answer» B. corners | |
| 387. |
Vacuum is a |
| A. | conductor |
| B. | insulator |
| C. | both a and b |
| D. | best conductor |
| Answer» C. both a and b | |
| 388. |
The flow of cool air from the sea towards land produces a |
| A. | land breeze |
| B. | sea breeze |
| C. | sand storm |
| D. | thunderstorm |
| Answer» C. sand storm | |
| 389. |
Heat gain causes a metal to |
| A. | expand |
| B. | contract |
| C. | shrink |
| D. | stable |
| Answer» B. contract | |
| 390. |
When a substance gains heat the temperature |
| A. | increases |
| B. | decreases |
| C. | remain same |
| D. | stabilize |
| Answer» B. decreases | |
| 391. |
Involuntary wave like movement of esophagus is called |
| A. | peristalsis |
| B. | anti peristalsis |
| C. | clockwise |
| D. | pushing |
| Answer» B. anti peristalsis | |
| 392. |
According to food guide pyramid fats oils and sweets should be used |
| A. | 2-3 servings |
| B. | frequently |
| C. | sparingly |
| D. | 2-4 servings |
| Answer» D. 2-4 servings | |
| 393. |
Bile is produced by |
| A. | liver |
| B. | pancreas |
| C. | gall bladder |
| D. | stomach |
| Answer» B. pancreas | |
| 394. |
Molar teeth help in food |
| A. | cutting |
| B. | grinding |
| C. | crushing |
| D. | ingesting |
| Answer» D. ingesting | |
| 395. |
Conversion of large molecules in to small molecules by chemical reactions involvement is called |
| A. | physical digestion |
| B. | chemical digestion |
| C. | assimilation |
| D. | elimination |
| Answer» C. assimilation | |
| 396. |
A relatively large and randomly oriented grains constitutes the rock |
| A. | Granite |
| B. | marble |
| C. | gneiss |
| D. | quartzite |
| Answer» B. marble | |
| 397. |
A rock which is formed after lava eruption is called |
| A. | Basalt |
| B. | granite |
| C. | sandstone |
| D. | limestone |
| Answer» B. granite | |
| 398. |
Granite is an |
| A. | sedimentary rocks |
| B. | metamorphic rocks |
| C. | igneous rocks |
| D. | morphic rocks |
| Answer» D. morphic rocks | |
| 399. |
A type of rock which is made as a result of cementation and compaction of sediment grains under pressure over a long period of time is called |
| A. | sedimentary rocks |
| B. | metamorphic rocks |
| C. | igneous rocks |
| D. | morphic rocks |
| Answer» B. metamorphic rocks | |
| 400. |
The continual process in which a rock is changed into another rock is called |
| A. | rock cycle |
| B. | rock sedimentation |
| C. | sorting of rocks |
| D. | accumulation of rocks |
| Answer» B. rock sedimentation | |