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.
| 701. |
Which one of the following is not a primary pollutant? |
| A. | Particulate matter |
| B. | Carbon monoxide |
| C. | Sulpuric acid |
| D. | Nitrogen oxides |
| Answer» D. Nitrogen oxides | |
| 702. |
If the average temperature of the sun increased, the wavelength of peak solar emission would: |
| A. | Shift to a shorter wavelength |
| B. | Shift to a longer wavelength |
| C. | Remain the same |
| D. | Impossible to tell from given information |
| Answer» B. Shift to a longer wavelength | |
| 703. |
The first oil well was drilled in the United States in |
| A. | 1829 |
| B. | 1859 |
| C. | 1929 |
| D. | 1959 |
| Answer» C. 1929 | |
| 704. |
Organisms which are predominantly found living on, in or near bed sediments of rivers or lakes are known as |
| A. | nektonic |
| B. | neuston |
| C. | benthic |
| D. | planktonic |
| Answer» D. planktonic | |
| 705. |
The most important reason for decrease in biodiversity is |
| A. | Habitat pollution |
| B. | Introduction of exotic species |
| C. | Over-exploitation |
| D. | Habitat destruction |
| Answer» E. | |
| 706. |
Producers are otherwise known as |
| A. | Organisms |
| B. | Manufacturers |
| C. | Organic compounds |
| D. | Autotrophs |
| Answer» E. | |
| 707. |
Scientists are able to determine the air temperature in the thermosphere by: |
| A. | Using radiosondes |
| B. | Using temperature probes in orbiting satellites |
| C. | Observing changes in satellite orbits |
| D. | Direct measurements in manned, high-altitude balloons |
| Answer» D. Direct measurements in manned, high-altitude balloons | |
| 708. |
__________ was developed after World War II. |
| A. | Wind energy |
| B. | Solar energy |
| C. | Nuclear power |
| D. | Thermal power |
| Answer» D. Thermal power | |
| 709. |
Nitrogen fixing blue green alga |
| A. | Clostridium |
| B. | Rhizobium |
| C. | Nostoc |
| D. | Nitrosomonas |
| Answer» D. Nitrosomonas | |
| 710. |
Water vapor is: |
| A. | A gas |
| B. | A cloud droplet |
| C. | A rain drop |
| D. | A snowflake |
| Answer» B. A cloud droplet | |
| 711. |
Earth summit was held in |
| A. | Stockholm in 1972 |
| B. | Rio de Jeneiro in 1992 |
| C. | Paris in 1992 |
| D. | New York in 1972 |
| Answer» C. Paris in 1992 | |
| 712. |
Which of the following is considered a variable gas in the earth's atmosphere? |
| A. | Water vapor |
| B. | Nitrogen |
| C. | Oxygen |
| D. | Argon |
| Answer» B. Nitrogen | |
| 713. |
The Residential and Commercial wastes mainly consist of: |
| A. | Food wastes |
| B. | Card board |
| C. | Packaging materials |
| D. | None of the above |
| Answer» D. None of the above | |
| 714. |
Particulate pollutants are |
| A. | are small solid particles and liquid droplets |
| B. | liquid droplets in atmosphere |
| C. | are small solid particles released into the atmosphere |
| D. | all of these |
| Answer» B. liquid droplets in atmosphere | |
| 715. |
An example of an abiotic component |
| A. | Plants |
| B. | Soil |
| C. | Animals |
| D. | Bacteria |
| Answer» C. Animals | |
| 716. |
Pencillium does not swallow the growth of bacterium Staphylococcus. This sort of relationship is called |
| A. | commensalism |
| B. | predation |
| C. | amensalism |
| D. | mutualism |
| Answer» D. mutualism | |
| 717. |
Fog that most often forms as warm rain falls into a cold layer of surface air is called: |
| A. | Radiation fog |
| B. | Evaporation (mixing) fog |
| C. | Advection fog |
| D. | Upslope fog |
| Answer» C. Advection fog | |
| 718. |
Acid deposition causes |
| A. | the greenhouse effect to lessen |
| B. | lakes and forests to die |
| C. | acid indigestion in humans |
| D. | all the above are correct |
| Answer» C. acid indigestion in humans | |
| 719. |
Deforestation generally decreases |
| A. | Global Warming |
| B. | Drought |
| C. | Soil erosion |
| D. | Rainfall |
| Answer» E. | |
| 720. |
Moisture in the air is known as |
| A. | Water |
| B. | Fog |
| C. | Snow |
| D. | Humidity |
| Answer» E. | |
| 721. |
Which is the world s most deadliest snake? |
| A. | Black mamba |
| B. | Spitting cobra |
| C. | Russel viper |
| D. | Anaconda |
| Answer» B. Spitting cobra | |
| 722. |
Herpetology is a branch of Science which deals with |
| A. | Aves |
| B. | Mammals |
| C. | Reptiles |
| D. | Fishes |
| Answer» D. Fishes | |
| 723. |
The air temperature is 45o F, the wind is blowing at 30 MPH, and the wind chill temperature is 15o F. These conditions would be equivalent to: |
| A. | A 15o F air temperature and 0 MPH winds |
| B. | A 30o F air temperature and 45 MPH winds |
| C. | A 30o F air temperature and 15 MPH winds |
| D. | A 15o F air temperature and 30 MPH winds |
| Answer» B. A 30o F air temperature and 45 MPH winds | |
| 724. |
At middle latitudes, the base of an altostratus or altocumulus cloud would generally be found between: |
| A. | 200 and 6,500 feet |
| B. | 6,500 and 23,000 feet |
| C. | 23,000 and 43,000 feet |
| D. | Above 43,000 feet |
| Answer» C. 23,000 and 43,000 feet | |
| 725. |
Which of the following groups is absolutely essential functional component of the ecosystem? |
| A. | Producers |
| B. | Producers and herbivores |
| C. | Producers and detritivores |
| D. | Detritivores |
| Answer» D. Detritivores | |
| 726. |
Causative organisms of Malaria |
| A. | Bacteria |
| B. | Fungus |
| C. | Plasmodium |
| D. | Virus |
| Answer» D. Virus | |
| 727. |
World Water Day is celebrated on ___________ |
| A. | May 22 |
| B. | June 05 |
| C. | March 22 |
| D. | May 11 |
| Answer» D. May 11 | |
| 728. |
Who wrote the book "Violence of Green Revolution" |
| A. | Vandana Siva |
| B. | Sheela Dikshit |
| C. | Menaka Gandhi |
| D. | Arundhathi Roy |
| Answer» B. Sheela Dikshit | |
| 729. |
Official date of Earth Day is on _________ |
| A. | April 22 |
| B. | March 21 |
| C. | May 22 |
| D. | June 05 |
| Answer» B. March 21 | |
| 730. |
Ozone Umbrella is located in which layer of atmosphere |
| A. | Troposphere |
| B. | Stratosphere |
| C. | Mesosphere |
| D. | Ionosphere |
| Answer» C. Mesosphere | |
| 731. |
During a radiation inversion, wind machines |
| A. | Bring warm air down toward the surface |
| B. | Lift cool, surface air to higher altitudes |
| C. | Mix the air near the ground |
| D. | All of the above |
| Answer» E. | |
| 732. |
Endoderm forms |
| A. | blood and bone |
| B. | respiratory system |
| C. | nervous system |
| D. | viscera and digestive system |
| Answer» E. | |
| 733. |
IUCN (The International Union For Conservation Of Nature And Natural Resources) headquarters is at |
| A. | Morges, Switzerland |
| B. | Paris, France |
| C. | Vienna, Austria |
| D. | NewYork, USA |
| Answer» B. Paris, France | |
| 734. |
The proper order from shortest to longest wavelength is: |
| A. | Visible, infrared, ultraviolet |
| B. | Infrared, visible, ultraviolet |
| C. | Ultraviolet, visible, infrared |
| D. | Visible, ultraviolet, infrared |
| E. | Ultraviolet, infrared, visible |
| Answer» D. Visible, ultraviolet, infrared | |
| 735. |
India ranks __________ amongst the wind-energy producing countries of the world. |
| A. | First |
| B. | Second |
| C. | Third |
| D. | Fourth |
| Answer» E. | |
| 736. |
All are primary pollutants except |
| A. | Ammonia |
| B. | Peroxyacetyl Nitrate (PAN) |
| C. | Sulfur dioxide |
| D. | Hydrogen sulfide |
| Answer» C. Sulfur dioxide | |
| 737. |
A set of organisms that resemble one another in appearance and behaviour is called a _____________ |
| A. | Exons |
| B. | Prions |
| C. | Species |
| D. | Guilds |
| Answer» D. Guilds | |
| 738. |
The legally binding international agreement to reduce Greenhouse gases by 5% 2012 is _________ |
| A. | Vienna convention |
| B. | Montreal Protocol |
| C. | Kyoto Protocol |
| D. | Ozone Protocol |
| Answer» D. Ozone Protocol | |
| 739. |
Without the atmospheric greenhouse effect, the average surface temperature would be: |
| A. | Higher than at present |
| B. | Lower than at present |
| C. | The same as it is now |
| D. | Much more variable than it is now |
| Answer» C. The same as it is now | |
| 740. |
Definition of ecosystem is |
| A. | The community of organisms together with the environment in which they live |
| B. | The abiotic component of a habitat |
| C. | The part of the earth and its atmosphere which inhibits living organisms |
| D. | A community of organisms interacting with one another |
| Answer» B. The abiotic component of a habitat | |
| 741. |
When the air is saturated, which of the following statements is NOT correct? |
| A. | The air temperature equals the wet-bulb temperature |
| B. | The relative humidity is 100 percent |
| C. | The air temperature equals the dew point temperature |
| D. | An increase in temperature will cause condensation to occur |
| E. | The wet bulb temperature equals the dew point temperature |
| Answer» E. The wet bulb temperature equals the dew point temperature | |
| 742. |
_________ is a practice of clearing and burning the forest area for cultivation of crops for 3-4 years and shifting. |
| A. | Jhum cultivation |
| B. | Horticulture |
| C. | Taungya cultivation |
| D. | Agrisilviculture |
| Answer» B. Horticulture | |
| 743. |
Which of the following region has maximum diversity |
| A. | mangrooves |
| B. | temperate rainforest |
| C. | taiga |
| D. | coral reefs |
| Answer» E. | |
| 744. |
A heat transfer process in the atmosphere that depends upon the movement of air is: |
| A. | Conduction |
| B. | Absorption |
| C. | Reflection |
| D. | Convection |
| E. | Radiation |
| Answer» E. Radiation | |
| 745. |
The term "latent" means: |
| A. | Late |
| B. | Hot |
| C. | Light |
| D. | Hidden |
| E. | Dense |
| Answer» E. Dense | |
| 746. |
Respiratory roots are known as |
| A. | velamen |
| B. | pneumatophores |
| C. | hydathodes |
| D. | prop roots |
| Answer» C. hydathodes | |
| 747. |
The animal which consumes decaying organic matter is _________ |
| A. | Carnivore |
| B. | Detritivore |
| C. | Herbivore |
| D. | Producers |
| Answer» C. Herbivore | |
| 748. |
The name given to a liquid drop of dew that freezes when the air temperature drops below freezing is: |
| A. | Frost |
| B. | Black frost |
| C. | Hoarfrost |
| D. | White frost |
| E. | Frozen dew |
| Answer» F. | |
| 749. |
Agastyamalai Biosphere reserve is in |
| A. | Pathanamthitta |
| B. | Thiruvananthapuram |
| C. | Idukki |
| D. | Wayanad |
| Answer» C. Idukki | |
| 750. |
Air pollution is likely to be most severe |
| A. | in the interior of continents |
| B. | near the center of an anticyclone |
| C. | in the summer |
| D. | when the atmosphere is turbulent |
| Answer» C. in the summer | |