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MCQOPTIONS
This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 23251. |
What is the accumulation of hydrogen ions in the upper layer of the soil called? |
| A. | hydrolysis |
| B. | reduction |
| C. | verification |
| D. | Dissolution |
| Answer» D. Dissolution | |
| 23252. |
What is the replacement of hydrogen ion in the soil with the mineral composition of cations called? |
| A. | hydration |
| B. | dehydration |
| C. | hydrolysis |
| D. | Humification |
| Answer» D. Humification | |
| 23253. |
'Tsunami' is related to which of the following features? |
| A. | a river in the southeast asian peninsula |
| B. | Surinamese people |
| C. | horrendous leafy waves |
| D. | followers of a particular sect |
| Answer» D. followers of a particular sect | |
| 23254. |
What is the increase in size of soil minerals due to water absorption and formation of new compounds called? |
| A. | hydration |
| B. | dehydration |
| C. | hydrolysis |
| D. | Humification |
| Answer» B. dehydration | |
| 23255. |
The loss of soil water by the process of drying and the return of compounds to their original form is called? |
| A. | hydration |
| B. | dehydration |
| C. | hydrolysis |
| D. | Dissolution |
| Answer» C. hydrolysis | |
| 23256. |
Seismic Indus waves are caused by what? |
| A. | due to the shrinking of the earth's crust |
| B. | by cyclones |
| C. | By submarine earthquakes |
| D. | by tide |
| Answer» D. by tide | |
| 23257. |
What is approximately the amount of fresh water in the total water available on the earth? |
| A. | 1.2% |
| B. | 2.7% |
| C. | 4,5% |
| D. | 5.8% |
| Answer» C. 4,5% | |
| 23258. |
The flow of water between the Atlantic and the Mediterranean Sea usually occurs in the form of surface and sub-oceanic currents. What is the main reason for this? |
| A. | variation in temperature |
| B. | variation in salinity |
| C. | Destiny winds |
| D. | high tidal wave |
| Answer» D. high tidal wave | |
| 23259. |
Why is the Sargasso Sea famous? |
| A. | for extremely low temperatures |
| B. | for more depth |
| C. | For still water filled with seaweed |
| D. | for warm ocean currents |
| Answer» D. for warm ocean currents | |
| 23260. |
Where is the reservoir with low nutrient concentration? |
| A. | in the Velanchal region |
| B. | in the microtrophic zone |
| C. | in Neritanchali area |
| D. | in the lower region |
| Answer» E. | |
| 23261. |
What is the progressive wave theory? |
| A. | tidal origin |
| B. | origin of ocean currents |
| C. | of earthquake waves |
| D. | construction of pediment |
| Answer» B. origin of ocean currents | |
| 23262. |
What is available in maximum quantity in the mud? |
| A. | quartzite |
| B. | quartz |
| C. | silica |
| D. | Magnesium |
| Answer» C. silica | |
| 23263. |
What is a datum line? |
| A. | contour line |
| B. | coast line |
| C. | mean line |
| D. | border line of two countries |
| Answer» D. border line of two countries | |
| 23264. |
Where do radiolarynx nipunk occur? |
| A. | at a depth of 600 to 1200 fathoms |
| B. | at a depth of 1500 to 2000 fathoms |
| C. | at a depth of 2000 to 5000 fathoms |
| D. | at a depth of 5000 to 6000 fathoms |
| Answer» D. at a depth of 5000 to 6000 fathoms | |
| 23265. |
What is the width of the Great Barrier Reef? |
| A. | 60 km. |
| B. | 120 kms. |
| C. | 135 km |
| D. | 160 kms. |
| Answer» E. | |
| 23266. |
Where are the most coral reefs? |
| A. | coastal coral reef |
| B. | coral reef |
| C. | coral ring |
| D. | none of these |
| Answer» C. coral ring | |
| 23267. |
What is the depth of the base of the coral reef? |
| A. | more than 50 meters |
| B. | over 80 meters |
| C. | over 130 meters |
| D. | over 180 meters |
| Answer» E. | |
| 23268. |
Where is the world's largest coral reef Great Barrier Reef located? |
| A. | off the south east coast of australia |
| B. | off the north east coast of australia |
| C. | off the north west coast of Australia |
| D. | off the south west coast of australia |
| Answer» C. off the north west coast of Australia | |
| 23269. |
What is the length of the Great Barrier Reef? |
| A. | 1300 kms more than |
| B. | 1600 kms more than |
| C. | 1900 km. more than |
| D. | 2200 km. more than |
| Answer» D. 2200 km. more than | |
| 23270. |
Where is the coastal coral reef found in India? |
| A. | near Okha |
| B. | near dwarka |
| C. | near rameshwaram |
| D. | near Hooghly |
| Answer» D. near Hooghly | |
| 23271. |
What temperature do corals need for growth? |
| A. | of 10°C |
| B. | of 20°C |
| C. | of 25°C |
| D. | of 35°C |
| Answer» C. of 25°C | |
| 23272. |
What is a coral platform along the continental or island coast called? |
| A. | coral reef |
| B. | coastal coral reef |
| C. | coral ring |
| D. | none of these |
| Answer» C. coral ring | |
| 23273. |
In which tropical latitudes does the development of coral (atoll) take place? |
| A. | on the east coast of continents |
| B. | on the northern coasts of continents |
| C. | on the west coast of continents |
| D. | in the open ocean away from the continents |
| Answer» E. | |
| 23274. |
What is the above condition in terms of importance for the deposition of coral? |
| A. | Deep Sea, Depression Water, Low Temperature |
| B. | shallow sea, sediment free water, normal temperature |
| C. | shallow sea, depression water, high temperature |
| D. | Deep ocean, depression free water, low temperature |
| Answer» C. shallow sea, depression water, high temperature | |
| 23275. |
Who among the following propounded the glacial control theory? |
| A. | Daily |
| B. | Davis |
| C. | died |
| D. | newton |
| Answer» B. Davis | |
| 23276. |
Coralina is a variety of which of the following? |
| A. | green algae |
| B. | red algae |
| C. | brown algae |
| D. | blue-green algae |
| Answer» C. brown algae | |
| 23277. |
Starfish, sea urchins and sea lilies are included in which class? |
| A. | in the poriference class |
| B. | in the class Echinoderms |
| C. | in the class of mollusks |
| D. | in coelenterates class |
| Answer» C. in the class of mollusks | |
| 23278. |
What is the theory presented by Darwin regarding the origin of coral reefs? |
| A. | equilibrium principle |
| B. | static wave theory |
| C. | progressive wave theory |
| D. | concave principle |
| Answer» E. | |
| 23279. |
In which class are coral and jellyfish included? |
| A. | in the poriference class |
| B. | in the class Echinoderms |
| C. | in the class of mollusks |
| D. | in coelenterates class |
| Answer» E. | |
| 23280. |
Sargassum is a variety of which of the following? |
| A. | green algae |
| B. | red algae |
| C. | brown algae |
| D. | blue-green algae |
| Answer» D. blue-green algae | |
| 23281. |
Gato pod, kama and octopus are included in which class? |
| A. | in the class Echinoderms |
| B. | in mollusca square |
| C. | in the class Brachiapodus |
| D. | in the class of arthropods |
| Answer» C. in the class Brachiapodus | |
| 23282. |
Irish Moss is an example of which of the following? |
| A. | green algae |
| B. | red algae |
| C. | brown algae |
| D. | blue-green algae |
| Answer» C. brown algae | |
| 23283. |
What is Neptune's shaving brush called? |
| A. | to Ulba |
| B. | to Halimeda |
| C. | Of Penicillus |
| D. | to Coralina |
| Answer» D. to Coralina | |
| 23284. |
Which one of the following is not an example of brown algae? |
| A. | Coralina |
| B. | kelp |
| C. | macrosystem |
| D. | nerosystem |
| Answer» B. kelp | |
| 23285. |
Which is an important marine resource for iodine and potash? |
| A. | green algae |
| B. | red algae |
| C. | brown algae |
| D. | blue-green algae |
| Answer» D. blue-green algae | |
| 23286. |
Which one of the following is not an example of green algae? |
| A. | Ulba |
| B. | halimeda |
| C. | penicillus |
| D. | Coralina |
| Answer» E. | |
| 23287. |
Trichodesmium is a type of which of the following? |
| A. | green algae |
| B. | red algae |
| C. | brown algae |
| D. | blue-green algae |
| Answer» E. | |
| 23288. |
Where is Trichodesmium not commonly found? |
| A. | in the black sea |
| B. | in the red sea |
| C. | in the Indian Ocean |
| D. | in the Java Sea |
| Answer» B. in the red sea | |
| 23289. |
Energy is formed in the deep ocean by the deposition of |
| A. | of inorganic substances |
| B. | of volcanic material |
| C. | of terrestrial mountains |
| D. | of organic matter |
| Answer» E. | |
| 23290. |
Where are the deposits of Paleozoic materials found? |
| A. | in shallow seas |
| B. | in coastal areas |
| C. | in deep seas |
| D. | none of these |
| Answer» B. in coastal areas | |
| 23291. |
What are organisms that swim in water called? |
| A. | algae |
| B. | benthos |
| C. | plankton |
| D. | nekton |
| Answer» E. | |
| 23292. |
Which one of the following variables is not an example of Bethos? |
| A. | shovel |
| B. | crab |
| C. | bunkles |
| D. | snail |
| Answer» D. snail | |
| 23293. |
What constitutes the majority of plankton? |
| A. | jelly fish |
| B. | ear worm |
| C. | Crab |
| D. | diatoms |
| Answer» E. | |
| 23294. |
Which one of the following is not an example of a constant Benthos? |
| A. | see weed |
| B. | crab |
| C. | Rachanj |
| D. | coral |
| Answer» C. Rachanj | |
| 23295. |
In general, which area is of most importance to marine life? |
| A. | ocean area |
| B. | velanchal region |
| C. | Naretic Zone |
| D. | severe ocean |
| Answer» D. severe ocean | |
| 23296. |
What are those floating or landing creatures with no means of moving themselves called? |
| A. | algae |
| B. | benthos |
| C. | plankton |
| D. | nekton |
| Answer» D. nekton | |
| 23297. |
What are the organisms that live on the ocean floor called? |
| A. | algae |
| B. | benthos |
| C. | plankton |
| D. | nekton |
| Answer» C. plankton | |
| 23298. |
What is a mixed tidal ebb? |
| A. | mixed alternate sequence of daily and semi-daily tides |
| B. | the average of the major and minor tides |
| C. | Two tides and two ebb in a day |
| D. | none of these |
| Answer» D. none of these | |
| 23299. |
By whom is the tides controlled? |
| A. | by declination |
| B. | by apogee |
| C. | by Sydel Month |
| D. | by cyanodic month |
| Answer» E. | |
| 23300. |
Who benefited the most from the defeat of the Marathas in the third battle of Panipat? |
| A. | to Ahmad Shah Abdali |
| B. | to the Mughal ruler |
| C. | to souls |
| D. | Of the East India Company |
| Answer» E. | |