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.
| 301. |
The element which easily get magnetized and demagnetized is |
| A. | iron |
| B. | steel |
| C. | copper |
| D. | silver |
| Answer» B. steel | |
| 302. |
The region surrounded a magnet is called |
| A. | magnetic force |
| B. | magnetic field |
| C. | magnetic circle |
| D. | magnetic energy |
| Answer» C. magnetic circle | |
| 303. |
Magnetic materials include |
| A. | steel |
| B. | iron |
| C. | nickel |
| D. | all of them |
| Answer» E. | |
| 304. |
Ceramic magnets are made of |
| A. | ferrites |
| B. | alnico |
| C. | magnetite |
| D. | copper |
| Answer» B. alnico | |
| 305. |
Porcupine puffer fish makes its appearance bigger by |
| A. | camouflage |
| B. | mimicry |
| C. | inflating |
| D. | blending |
| Answer» D. blending | |
| 306. |
Animal which is being hunt down is called |
| A. | predator |
| B. | prey |
| C. | scavenger |
| D. | wild animal |
| Answer» C. scavenger | |
| 307. |
An example of air breathing fish which is modified for aestivation is |
| A. | lung fish |
| B. | ray |
| C. | eel |
| D. | dolphin |
| Answer» B. ray | |
| 308. |
The mutual relationship between two organism both benefiting each other is called |
| A. | symbiosis |
| B. | mutualism |
| C. | parasitism |
| D. | food chain |
| Answer» C. parasitism | |
| 309. |
A field community have organisms |
| A. | fungi |
| B. | turtle |
| C. | star fish |
| D. | shell fish |
| Answer» B. turtle | |
| 310. |
The primary colors of light includes |
| A. | red |
| B. | green |
| C. | blue |
| D. | all of them |
| Answer» E. | |
| 311. |
The band of colored light which make up white light is called |
| A. | spectrum of light |
| B. | band of light |
| C. | rainbow |
| D. | white light colors |
| Answer» B. band of light | |
| 312. |
An instrument which enables us to see distant objects clearly is |
| A. | microscope |
| B. | telescope |
| C. | kaleidoscope |
| D. | periscope |
| Answer» C. kaleidoscope | |
| 313. |
The partial shadow is called |
| A. | umbra |
| B. | penumbra |
| C. | screen |
| D. | source |
| Answer» C. screen | |
| 314. |
A snail crawls at the speed of |
| A. | 1.7 m/s |
| B. | 0.03 m /s |
| C. | 25m/s |
| D. | 10m/s |
| Answer» C. 25m/s | |
| 315. |
Heart is made of specialized |
| A. | cardiac muscles |
| B. | connective tissues |
| C. | both a and b |
| D. | skeletal sphincters |
| Answer» D. skeletal sphincters | |
| 316. |
The distance which is travelled by an average red blood cell is equal to |
| A. | 1500 km |
| B. | 1200 km |
| C. | 2100 km |
| D. | 5100 km |
| Answer» B. 1200 km | |
| 317. |
There is higher concentration of oxygen in |
| A. | inhaled air |
| B. | exhaled air |
| C. | circulated air |
| D. | deoxygenated air |
| Answer» B. exhaled air | |
| 318. |
Respiration which takes place in the absence of oxygen is called |
| A. | cellular respiration |
| B. | aerobic respiration |
| C. | anaerobic respiration |
| D. | breathing |
| Answer» D. breathing | |
| 319. |
Blood collects oxygen from inhaled air and gives off carbon dioxide in the |
| A. | lungs |
| B. | liver |
| C. | kidneys |
| D. | heart |
| Answer» B. liver | |
| 320. |
Iron-rich igneous rock includes |
| A. | granite |
| B. | obsidian |
| C. | basalt |
| D. | all of them |
| Answer» D. all of them | |
| 321. |
Ashes and rock fragments cool and settle on earth's surface can form volcanic rock like |
| A. | tuff |
| B. | pumice |
| C. | obsidian |
| D. | granite |
| Answer» B. pumice | |
| 322. |
A comparison between marble and limestone shows marble is more |
| A. | vulnerable |
| B. | harder |
| C. | weaker |
| D. | smaller |
| Answer» C. weaker | |
| 323. |
A which is mainly composed of fossils cemented by calcium carbonate is |
| A. | Shelly limestone |
| B. | chalk |
| C. | oolitic limestone |
| D. | all of them |
| Answer» B. chalk | |
| 324. |
A bacterial cell lacks |
| A. | flagella |
| B. | chromosome |
| C. | cell wall |
| D. | nucleus |
| Answer» E. | |
| 325. |
Anti-microbial compounds includes |
| A. | antiseptic |
| B. | disinfectants |
| C. | both a and b |
| D. | antibiotics |
| Answer» D. antibiotics | |
| 326. |
The important decomposers include |
| A. | bacteria |
| B. | fungi |
| C. | both a and b |
| D. | virus |
| Answer» D. virus | |
| 327. |
Proteins which defend body are called |
| A. | antigens |
| B. | antibodies |
| C. | disinfectant |
| D. | antiseptics |
| Answer» C. disinfectant | |
| 328. |
The enzymes which digest the outer layer of bacteria are called |
| A. | lysosomes |
| B. | chromosomes |
| C. | ribosome |
| D. | Golgi bodies |
| Answer» B. chromosomes | |
| 329. |
Mercury is |
| A. | harmless |
| B. | safe |
| C. | non-toxic |
| D. | poisonous |
| Answer» E. | |
| 330. |
In melting of ice cube the heat gain |
| A. | melts ice |
| B. | increase temperature |
| C. | gain energy |
| D. | release energy |
| Answer» B. increase temperature | |
| 331. |
A joint which is made between adjoining rails to expand without bending is called |
| A. | rail joint |
| B. | sliding joint |
| C. | expansion joint |
| D. | contraction joint |
| Answer» C. expansion joint | |
| 332. |
Heat loss may help the matter to |
| A. | expand |
| B. | contract |
| C. | spread |
| D. | stable |
| Answer» C. spread | |
| 333. |
Railway tracks have gaps between them to deal with expansion in |
| A. | hot days |
| B. | cold days |
| C. | winters |
| D. | snow fall |
| Answer» B. cold days | |
| 334. |
Demand for transport and production of goods have increased due to excessive |
| A. | consumption |
| B. | wastage |
| C. | recycling |
| D. | reducing |
| Answer» B. wastage | |
| 335. |
People should be banned to hunt in forest or collect wild plants to ensure protection of |
| A. | wild life |
| B. | ecosystem |
| C. | food chain |
| D. | food web |
| Answer» B. ecosystem | |
| 336. |
Sharks are hunted to create delicacy in Chinese cuisine by its |
| A. | jaws |
| B. | fins |
| C. | eyes |
| D. | tail |
| Answer» C. eyes | |
| 337. |
Global warming refers to |
| A. | drastic changes in climate |
| B. | everywhere will be hot climate |
| C. | everywhere will be freezing |
| D. | some warmer other colder |
| Answer» E. | |
| 338. |
When forests are cleared on a very large scale by cutting or burning them down it is |
| A. | forestation |
| B. | deforestation |
| C. | plantation |
| D. | incantation |
| Answer» C. plantation | |
| 339. |
During decomposition of buried waste explosion can occur due to production of gas |
| A. | oxygen |
| B. | methane |
| C. | carbon dioxide |
| D. | nitrogen |
| Answer» C. carbon dioxide | |
| 340. |
Animal which is hunted for its glands which is used to make perfumes is |
| A. | deer |
| B. | cat |
| C. | antelope |
| D. | duck |
| Answer» B. cat | |
| 341. |
Many animals have become endangered species due to |
| A. | over hunting |
| B. | over feeding |
| C. | global warming |
| D. | forestation |
| Answer» B. over feeding | |
| 342. |
Technology can be use to harness renewable sources of |
| A. | energy |
| B. | food |
| C. | light |
| D. | heat |
| Answer» B. food | |
| 343. |
Algae grows on surface of water and hence the becomes barrier for plants in water by blocking |
| A. | sunlight |
| B. | heat |
| C. | fresh water |
| D. | temperature |
| Answer» B. heat | |
| 344. |
The animals which feed on plants are called |
| A. | herbivores |
| B. | carnivores |
| C. | omnivores |
| D. | ovivores |
| Answer» B. carnivores | |
| 345. |
Producers are mainly |
| A. | plants |
| B. | animals |
| C. | rocks |
| D. | micro-organisms |
| Answer» B. animals | |
| 346. |
Factors within an environment interact and affect |
| A. | each other |
| B. | other species |
| C. | environment |
| D. | habitat |
| Answer» B. other species | |
| 347. |
The study of interactions among organism and between a biotic and biotic environment is called |
| A. | ecology |
| B. | zoology |
| C. | botany |
| D. | biochemistry |
| Answer» B. zoology | |
| 348. |
In aquatic animals the important physical factor is |
| A. | light |
| B. | temperature |
| C. | pressure |
| D. | volume |
| Answer» C. pressure | |
| 349. |
Iron-rich igneous rocks are denser than rocks which are rich in |
| A. | silica |
| B. | Sulphur |
| C. | cobalt |
| D. | calcium |
| Answer» B. Sulphur | |
| 350. |
Gneiss has been transformed from |
| A. | sandstone |
| B. | limestone |
| C. | igneous rock |
| D. | shale |
| Answer» D. shale | |