MCQOPTIONS
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MCQOPTIONS
This section includes 639 Mcqs, each offering curated multiple-choice questions to sharpen your Science knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
What are needed to complete a photosynthesis process? |
| A. | Water and Air |
| B. | Enzyme and Energy |
| C. | Soil and moisture |
| D. | Nutrients |
| Answer» C. Soil and moisture | |
| 402. |
Food webs derive their energy from sunlight. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 403. |
Tertiary consumers in ponds, feed on |
| A. | Big fishes |
| B. | Plants |
| C. | Planktons |
| D. | Decomposers |
| Answer» B. Plants | |
| 404. |
An average annual precipitation in tropical rain forest, quantity exceeded ups |
| A. | 12C |
| B. | 18C |
| C. | 22C |
| D. | 6C |
| Answer» C. 22C | |
| 405. |
What kind of climate we can find in the Thar desert? |
| A. | Cold |
| B. | Dry |
| C. | Cool |
| D. | Moist |
| Answer» C. Cool | |
| 406. |
Which form of Sun’s energy is trapped by the producers in the energy flow? |
| A. | Light energy |
| B. | Chemical energy |
| C. | Wind energy |
| D. | Pressure energy |
| Answer» B. Chemical energy | |
| 407. |
Which is the first process in ecological succession? |
| A. | Nudation |
| B. | Migration |
| C. | Ecesis |
| D. | Aggregation |
| Answer» B. Migration | |
| 408. |
In which conference, the governments of coastal countries agreed to established zones of 200 nautical miles around their shores? |
| A. | United Nation Law of Seas |
| B. | United Nations |
| C. | UNESCO |
| D. | World Bank |
| Answer» B. United Nations | |
| 409. |
Abnormal properties of hydrogen are due to |
| A. | Tripolic movement |
| B. | Hydrogen bonding |
| C. | High evaporation |
| D. | High temperature |
| Answer» C. High evaporation | |
| 410. |
Which organisms feed on the flash of herbivores? |
| A. | Carnivores |
| B. | Herbivores |
| C. | Omnivores |
| D. | Zooplanktons |
| Answer» B. Herbivores | |
| 411. |
What would happen if earth had no atmosphere ? |
| A. | Earth would be below freezing |
| B. | There would be no existence |
| C. | There would be no length of the day |
| D. | All of above |
| Answer» C. There would be no length of the day | |
| 412. |
When the population of all the species are add ad together are called |
| A. | Population |
| B. | Community |
| C. | Biosphere |
| D. | Ecosystem |
| Answer» C. Biosphere | |
| 413. |
Detrivores include herbivores, primary carnivores and |
| A. | Producers |
| B. | Omnivores |
| C. | Detrivores |
| D. | Grazing food chain |
| Answer» C. Detrivores | |
| 414. |
Oceans occupy what percent of earth's surface? |
| A. | 80% |
| B. | 50% |
| C. | 70% |
| D. | 30% |
| Answer» D. 30% | |
| 415. |
All the organism produce more organism so that the competition between is |
| A. | Unavoidable |
| B. | Voidable |
| C. | Its continual |
| D. | All of these |
| Answer» B. Voidable | |
| 416. |
What is the average net primary productivity in a natural rainforest ? |
| A. | 4200 grammes/m²/year |
| B. | 2000 grammes/m²/year |
| C. | 3200 grammes/m²/year |
| D. | 2200 grammes/m²/year |
| Answer» E. | |
| 417. |
Standing water 'ecosystem' is known as |
| A. | Running water ecosystem |
| B. | Lentic aquatic ecosystem |
| C. | Lotic ecosystem |
| D. | Lakes ecosystem |
| Answer» C. Lotic ecosystem | |
| 418. |
What is input of naturally subsidized solar powered ecosystem? |
| A. | 10,000 to 90,000kcal/m² per year |
| B. | 10,000 to 80,000kcal/m² per year |
| C. | 10,000 to 40,000kcal/m² per year |
| D. | 20,000 to 40,000kcal/m² per year |
| Answer» D. 20,000 to 40,000kcal/m² per year | |
| 419. |
What is called for the term in which all the living organisms that occupy an area undergoing primary succession in the beginning stages? |
| A. | Climax community |
| B. | Settled community |
| C. | Dense community |
| D. | Pioneer community |
| Answer» E. | |
| 420. |
Which food is mainly used for the energy in the cells? |
| A. | Carbohyderates |
| B. | nutrients |
| C. | Glocose |
| D. | Ezymes |
| Answer» D. Ezymes | |
| 421. |
What is called for the term used to express a community in its final stage of succession? |
| A. | End community |
| B. | Final community |
| C. | Climax community |
| D. | Dark community |
| Answer» D. Dark community | |
| 422. |
Into how many areas the energy that is received by organisms during energy transfer is converted? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» D. Four | |
| 423. |
Which process occurs after a volcanic eruption? |
| A. | Primary succession |
| B. | Secondary succession |
| C. | Nitrogen fixation |
| D. | Oxidation |
| Answer» C. Nitrogen fixation | |
| 424. |
Species diversity hurts ecological succession. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 425. |
Soil changes due to erosion is an example of which of the following succession? |
| A. | Allogenic succession |
| B. | Autogenic succession |
| C. | Computational succession |
| D. | Emigrational succession |
| Answer» B. Autogenic succession | |
| 426. |
Simple inorganic substances released into environment is reused by |
| A. | Decomposers |
| B. | Producers |
| C. | Omnivores |
| D. | Herbivores |
| Answer» C. Omnivores | |
| 427. |
Where the overfishing problems has started rising? |
| A. | Southern Ocean |
| B. | Pacific Ocean |
| C. | Arctic |
| D. | Antarica |
| Answer» B. Pacific Ocean | |
| 428. |
In which ecosystem sun energy is replaced by highly concentrated potential energy of chemicals and fuels? |
| A. | Man subsidized solar power ecosystem |
| B. | Unsubsidized natural solar powered ecosystem |
| C. | Naturally subsidized solar powered ecosystem |
| D. | Fuel power ecosystem |
| Answer» E. | |
| 429. |
Which of the following condition is true for food web? |
| A. | A food web only follows just one path |
| B. | A food web ends with a producer |
| C. | A food web starts with a consumer |
| D. | A food web shoes many paths plants and animals connected. |
| Answer» E. | |
| 430. |
Green plants use water, sunlight and carbondioxide to form |
| A. | Glocose |
| B. | Fructose |
| C. | Enzyme |
| D. | Nutrients |
| Answer» B. Fructose | |
| 431. |
How much water is contained by hydrosphere? |
| A. | 1660 million cubic km |
| B. | 1560 million cubic km |
| C. | 1460 million cubic km |
| D. | 1360 million cubic km |
| Answer» E. | |
| 432. |
Large carnivores which rely for food on small carnivores are known as |
| A. | Primary Producers |
| B. | Secondary Producers |
| C. | Tertiary Consumers |
| D. | Predators |
| Answer» D. Predators | |
| 433. |
The single celled algae are |
| A. | Phytoplankton |
| B. | Zooplankton |
| C. | Microorganism |
| D. | Herbivores |
| Answer» B. Zooplankton | |
| 434. |
Oxides of Nitrogen causes what health problems in humans? |
| A. | Bronchitis Asthma |
| B. | Heart issues |
| C. | Skin Cancer |
| D. | Lung disease |
| Answer» B. Heart issues | |
| 435. |
Herbivores are known as |
| A. | Primary Producers |
| B. | Secondary Producers |
| C. | Consumers |
| D. | Herbivores |
| Answer» B. Secondary Producers | |
| 436. |
In which of the following place we can find the cold deserts? |
| A. | Bangalore |
| B. | Chennai |
| C. | Himalaya |
| D. | Rajasthan |
| Answer» D. Rajasthan | |
| 437. |
In man subsidized powered ecosystem, power or energy input by man is, in form of |
| A. | Fertilizers and machines |
| B. | Tides and waves |
| C. | waves and currents |
| D. | Nuclear energy |
| Answer» B. Tides and waves | |
| 438. |
How countries can manage fish stocks in their EEZs? |
| A. | Quotas |
| B. | Areas |
| C. | United Nation Law of Seas |
| D. | Seats |
| Answer» B. Areas | |
| 439. |
'Folsom bottles' were created by |
| A. | Prof.Claire Folsom |
| B. | Edward Suess |
| C. | Ed Shareen |
| D. | Folsom |
| Answer» B. Edward Suess | |
| 440. |
In which state water is in its purest form? |
| A. | Evaporation state |
| B. | Solid state |
| C. | Liquid state |
| D. | Gas State |
| Answer» B. Solid state | |
| 441. |
EU stands for |
| A. | European Union |
| B. | Expanded universe |
| C. | eastern University |
| D. | All of these |
| Answer» B. Expanded universe | |
| 442. |
Where can we find the most feared spider in the world ‘Tarantulas’? |
| A. | In deserts |
| B. | In mountains |
| C. | In tropical rain forests |
| D. | In grassland forest |
| Answer» D. In grassland forest | |
| 443. |
Why Norway voted to stay out of EU? |
| A. | To control over its marine resources |
| B. | Laws doesn?t benefits them anymore |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Laws doesn?t benefits them anymore | |
| 444. |
What is called for the succession driven by the biotic components of an ecosystem? |
| A. | Allogenic succession |
| B. | Autogenic succession |
| C. | Computational succession |
| D. | Migration succession |
| Answer» C. Computational succession | |
| 445. |
What are examples of fuel powered ecosystem? |
| A. | Deserts |
| B. | Coastal estuary |
| C. | Tropical rain forests |
| D. | Cities, Suburbs and industrial parks |
| Answer» E. | |
| 446. |
Tropical rainforests, Monsoon forests, Savanna grassland, Deserts, taiga and tundra are the example of |
| A. | Marine Ecosystem |
| B. | Land Ecosystem |
| C. | Biomes |
| D. | Biosphere |
| Answer» C. Biomes | |
| 447. |
How many types of ecological succession are there? |
| A. | 3 |
| B. | 2 |
| C. | 5 |
| D. | 4 |
| Answer» C. 5 | |
| 448. |
Algae, green plants and photosynthetic bacteria are: |
| A. | Autotrophic organisms |
| B. | Heterotrophic |
| C. | Decomposers |
| D. | Consumers |
| Answer» B. Heterotrophic | |
| 449. |
Chemical energy that is stored in primary producers is in form of |
| A. | Organic molecules |
| B. | Inorganic compounds |
| C. | Green plants and Algae |
| D. | Omnivores |
| Answer» B. Inorganic compounds | |
| 450. |
Humans are dependent on aquatic ecosystem. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |