MCQOPTIONS
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MCQOPTIONS
This section includes 1049 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.
| 501. |
Which of the following provides a measure of the average speed of air molecules?$? |
| A. | Pressure |
| B. | Temperature |
| C. | Density |
| D. | Heat |
| Answer» C. Density | |
| 502. |
In India, tropical evergreen forests occur in$? |
| A. | Himachal Pradesh |
| B. | Madhya Pradesh |
| C. | Assam |
| D. | Tamil Nadu |
| Answer» D. Tamil Nadu | |
| 503. |
Climate includes$? |
| A. | Seasonal variation |
| B. | General patterns of atmosphere conditions |
| C. | Average weather of an area |
| D. | All of these |
| Answer» E. | |
| 504. |
The presence of which is necessary for photosynthesis$? |
| A. | Chloroform |
| B. | Chlorophyll |
| C. | Phosphorus |
| D. | Polymer |
| Answer» C. Phosphorus | |
| 505. |
Viable material of endangered species can be preserved by$? |
| A. | Gene bank |
| B. | Gene library |
| C. | Gene pool |
| D. | Herbarium |
| Answer» B. Gene library | |
| 506. |
Euro II standard refers to _________$? |
| A. | Lowering sulfur content in fuel |
| B. | Increasing sulfur content in fuel |
| C. | Lowering carbon content in fuel |
| D. | increasing carbon content in fuel |
| Answer» D. increasing carbon content in fuel | |
| 507. |
Who coined the slogan of "Chipko Movement" "Ecology is Permanent economy"$? |
| A. | Jawaharlal Nehru |
| B. | Salim Ali |
| C. | Sunderlal Bahuguna |
| D. | Rachel Carson |
| Answer» D. Rachel Carson | |
| 508. |
As the air temperature increases, the air's capacity for water vapor:$? |
| A. | Increases |
| B. | Decreases |
| C. | Remains constant |
| D. | Is unrelated to air temperature and can either increase or decrease |
| Answer» B. Decreases | |
| 509. |
One atom of chlorine can destroy over __________ molecules of ozone.$? |
| A. | 100000 |
| B. | 10000 |
| C. | 25000 |
| D. | 1000 |
| Answer» B. 10000 | |
| 510. |
The energy used for all plant life processes is derived from __________ radiation.$? |
| A. | ultra violet |
| B. | infra red |
| C. | beta |
| D. | solar |
| Answer» E. | |
| 511. |
____________ is one of the most endangered species of Indian birds$? |
| A. | Bee eater |
| B. | Paradise fly catcher |
| C. | Owl |
| D. | The great Indian bustard |
| Answer» E. | |
| 512. |
The pollution which does not persistent harm to life supporting system is$? |
| A. | Noise pollution |
| B. | Radiation pollution |
| C. | Organochlorine pollution |
| D. | All of these |
| Answer» B. Radiation pollution | |
| 513. |
A permeable rock that contains hydrocarbon fluids and gasses is called a/an$? |
| A. | Oil trap |
| B. | Source bed |
| C. | Oil reservoir |
| D. | None of these |
| Answer» D. None of these | |
| 514. |
Which of the following group of gases cause photochemical smog?$? |
| A. | Ozone, PAN and CO |
| B. | HC, NO and PAN |
| C. | O2, PAN, and NO2 |
| D. | O3, PAN and NO2 |
| Answer» E. | |
| 515. |
A renewable source of energy is$? |
| A. | Petroleum |
| B. | Coal |
| C. | Nuclear fuel |
| D. | Trees |
| Answer» E. | |
| 516. |
In calm air the air temperature is -10o C, if the wind speed should increase to 30 knots (with no change in air temperature) the thermometer would indicate:$? |
| A. | A much higher temperature than -10o C |
| B. | A much lower temperature than -10o C |
| C. | A temperature of -10o C |
| D. | A temperature of -30o C |
| Answer» D. A temperature of -30o C | |
| 517. |
Which of the following spatial units is the largest in terms of scale?$? |
| A. | River segments |
| B. | Mesohabitats |
| C. | Patches |
| D. | River reaches |
| Answer» B. Mesohabitats | |
| 518. |
Eutrophication of water bodies resulting to killing of fishes is mainly due to non-availability of$? |
| A. | Food |
| B. | Light |
| C. | Oxygen |
| D. | Essential minerals |
| Answer» D. Essential minerals | |
| 519. |
Grassland of USA is referred to as$? |
| A. | Prairies |
| B. | Steppes |
| C. | Pampas |
| D. | Veldts |
| Answer» B. Steppes | |
| 520. |
The term "Ecology" was coined by$? |
| A. | A.G.Tansley |
| B. | Earnst Haeckel |
| C. | Aristotle |
| D. | Linnaeus |
| Answer» C. Aristotle | |
| 521. |
When clouds are viewed near the horizon, the individual cloud elements usually:$? |
| A. | Appear closer together than is actually the case |
| B. | Appear farther apart than is actually the case |
| C. | Appear lighter in color than is actually the case |
| D. | Appear to have more vertical development than is actually the case |
| Answer» B. Appear farther apart than is actually the case | |
| 522. |
The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere:$? |
| A. | Barograph |
| B. | Radiosonde |
| C. | Aneroid barometer |
| D. | Altimeter |
| Answer» C. Aneroid barometer | |
| 523. |
CFCs are used as$? |
| A. | refrigerants |
| B. | insulators |
| C. | aerosol propellants |
| D. | all the above |
| Answer» E. | |
| 524. |
When oil and gas resources are burnt they kill many forests and lakes by$? |
| A. | deforestation |
| B. | water pollution |
| C. | acid rain |
| D. | forest fire |
| Answer» D. forest fire | |
| 525. |
The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called$? |
| A. | air pollution |
| B. | water pollution |
| C. | soil pollution |
| D. | radioactive pollution |
| Answer» B. water pollution | |
| 526. |
The major pollutant from automoblie exhaust is$? |
| A. | NO |
| B. | CO |
| C. | SO2 |
| D. | Soot |
| Answer» C. SO2 | |
| 527. |
Which of the following rock types would most likely be the best oil reservoir?$? |
| A. | Granite |
| B. | Shale |
| C. | Sandstone |
| D. | Salt |
| Answer» D. Salt | |
| 528. |
What is the name of the action plan for sustainable development in the Twenty first century framed in the Rio Declaration on Environment & Development (1992)?$? |
| A. | Action 21 |
| B. | Agenda 21 |
| C. | Rio 21 |
| D. | Declaration 21 |
| Answer» C. Rio 21 | |
| 529. |
The movement "Pani Panjayath" was initiated to conserve waters in the drought prone areas of _______state.$? |
| A. | Tamilnadu |
| B. | Rajasthan |
| C. | Maharashtra |
| D. | Karnataka |
| Answer» D. Karnataka | |
| 530. |
Utilisation of natural resources in moderate manner to remaining something for the next generation is termed as$? |
| A. | Resettlement |
| B. | Sustainable development |
| C. | Rehabilitation |
| D. | Mutual development |
| Answer» C. Rehabilitation | |
| 531. |
Acid is an example of _____________$? |
| A. | Corrosive waste |
| B. | Infectious waste |
| C. | Radioactive waste |
| D. | Ignitable waste |
| Answer» B. Infectious waste | |
| 532. |
Who had stated in the Stockholm Conference in 1972 that poverty was the greatest polluter?$? |
| A. | Indira Gandhi |
| B. | Mahatma Gandhi |
| C. | Rajiv Gandhi |
| D. | Jawaharlal Nehru |
| Answer» B. Mahatma Gandhi | |
| 533. |
What is edge species?$? |
| A. | The species which occur abundantly in the ecotone |
| B. | Species on the verge of extinction |
| C. | Rare species |
| D. | Endemic species |
| Answer» B. Species on the verge of extinction | |
| 534. |
Normally rain water is slightly$? |
| A. | Pure |
| B. | Acidic |
| C. | Toxic |
| D. | Oxidize |
| Answer» C. Toxic | |
| 535. |
Carbon dioxide is called green-house gas because it is$? |
| A. | Transparent to sunlight but traps heat |
| B. | Transparent to heat but traps sunlight |
| C. | Used in green-house to increase plant growth |
| D. | Transparent to both sunlight and heat |
| Answer» B. Transparent to heat but traps sunlight | |
| 536. |
Noise is _______________$? |
| A. | Huge sound |
| B. | Sound of vehicles |
| C. | Undesirable and unwanted sound |
| D. | Sound of crackers |
| Answer» D. Sound of crackers | |
| 537. |
Slip erosion is also known as$? |
| A. | landslide |
| B. | Earthquake |
| C. | Volcano |
| D. | Floads |
| Answer» B. Earthquake | |
| 538. |
_________ is a mixture of 50 - 90% of methane$? |
| A. | Natural gas |
| B. | Air |
| C. | Water |
| D. | Bio diesel |
| Answer» B. Air | |
| 539. |
Commonly used radioactive isotopes in scientific research$? |
| A. | 14 C |
| B. | 125 I |
| C. | 32 P |
| D. | all of these |
| Answer» E. | |
| 540. |
Ganga Action Plan in India was launched in the year _________$? |
| A. | 1988 |
| B. | 1985 |
| C. | 1980 |
| D. | 1978 |
| Answer» C. 1980 | |
| 541. |
The total mass of water vapor stored in the atmosphere at any moment is about ____ of the world's supply of precipitation.$? |
| A. | 1 day |
| B. | 1 week |
| C. | 1 month |
| D. | 1 year |
| Answer» C. 1 month | |
| 542. |
The concept that 'population tends to increase geometrically while food supply increases arithmetically' was put forward by$? |
| A. | Adam Smith |
| B. | Charles Darwin |
| C. | Thomas Malthus |
| D. | Stuart Mill |
| Answer» D. Stuart Mill | |
| 543. |
The sun emits its greatest intensity of radiation in:$? |
| A. | The visible portion of the spectrum |
| B. | The infrared portion of the spectrum |
| C. | The ultraviolet portion of the spectrum |
| D. | The x-ray portion of the spectrum |
| Answer» B. The infrared portion of the spectrum | |
| 544. |
Aquatic life is damaged by$? |
| A. | Sound pollution |
| B. | Air Pollution |
| C. | Thermal pollution |
| D. | All of these |
| Answer» D. All of these | |
| 545. |
_________ is mixed with petrol for being used in automobiles$? |
| A. | Gasohol |
| B. | Methanol |
| C. | Propanol |
| D. | Ethanol |
| Answer» E. | |
| 546. |
Example for a physical pollutant$? |
| A. | Water |
| B. | Air |
| C. | Radiation |
| D. | Plant |
| Answer» D. Plant | |
| 547. |
A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as$? |
| A. | Ecological pyramid |
| B. | Pyramid of biomass |
| C. | Pyramid of number |
| D. | Pyramid of energy |
| Answer» D. Pyramid of energy | |
| 548. |
Meteorology is considered a branch of:$? |
| A. | Mineralogical sciences |
| B. | Phenology |
| C. | Phrenology |
| D. | Atmospheric sciences |
| Answer» E. | |
| 549. |
The most endangered ecosystem in India$? |
| A. | Shola forest ecosystem |
| B. | Evergreen forest ecosystem |
| C. | Pond ecosystem |
| D. | Tundra Ecosystem |
| Answer» C. Pond ecosystem | |
| 550. |
Example for a bio-degradable polymer is$? |
| A. | Polyethylene |
| B. | Polypropylene |
| C. | Poly lactic acid |
| D. | Polyester |
| Answer» D. Polyester | |