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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 | |