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201.

Superbugs are

Answer»

 Bacteria



Superbugs are STRAINS of bacteria that are resistant to several TYPES of antibiotics. Each year these drug-resistant bacteria infect more than 2 million people nationwide and kill at LEAST 23,000, according to the U.S. CENTERS for Disease Control and Prevention (CDC).

202.

MAB stands for

Answer»

 MAN and BIOSPHERE



Man and the Biosphere PROGRAMME (MAB) is an intergovernmental scientific programme, launched in 1971 by UNESCO, that aims to establish a scientific basis for the IMPROVEMENT of relationships between PEOPLE and their environments.

203.

Environmental Protection Act was introduced in the year

Answer»

 1986



In the wake of the Bhopal Tragedy, the Government of India enacted the ENVIRONMENT Protection Act of 1986 under Article 253 of the Constitution. Passed in March 1986, it came into FORCE on 19 November 1986.

204.

When a liquid thermometer is held in direct sunlight,

Answer»

 It will measure a much higher temperature than that of the air



When a LIQUID THERMOMETER is HELD in direct SUNLIGHT, it will measure a much higher temperature than that of the air.

205.

Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?

Answer»

 It is INVERTED in SHAPE



It is inverted in shape.

206.

The climate of a given region is

Answer»

 AVERAGE temperature and PRECIPITATION conditions for EVERY DAY of the year in a given region



The CLIMATE of a given region is average temperature and precipitation conditions for every day of the year in a given region

207.

Nitrogen gas returns to the atmosphere by the action of

Answer»

 Denitrifying BACTERIA



Nitrogen GAS RETURNS to the ATMOSPHERE by the ACTION of denitrifying bacteria.

208.

Towering cumulus (cumulus congestus) would refer to which of the clouds sketched below?

Answer»

 B



Towering CUMULUS (cumulus congestus) WOULD REFER to CLOUD b.

209.

Which of the radioactive material is largely associated with bone cancer

Answer»

 Strontium-90



The HARMFUL effects of strontium-90 are caused by the high energy effects of radiation. Since RADIOACTIVE strontium is taken up into BONE, the bone itself and nearby soft TISSUES may be damaged by radiation released over time.

210.

One third of the global cases of Tuberculosis is in

Answer»

 INDIA



One THIRD of the GLOBAL CASES of TUBERCULOSIS is in India.

211.

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:

Answer»

 A temperature of -10o C



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 temperature of -10o C.

212.

The algal booin often releases __________ in water

Answer»

 toxins



A harmful algal bloom (HAB) CONTAINS organisms that can SEVERELY lower oxygen LEVELS in natural WATERS, killing marine life. Some HABS are associated with algae-produced toxins.

213.

What is the most important factor for the success of animal population?

Answer»

 Adaptability



The PROCESS by which a species becomes fit to its survival in the ENVIRONMENT is CALLED adaptability. When the environmental FACTORS change the organism has to adapt to its surrounding by changing its temperature or metabolism over a period of time, Hence adaptability is the result of natural selection.

214.

All are physical pollutants except

Answer»

 SOOT



All are PHYSICAL POLLUTANTS EXCEPT soot.

215.

A great deal of indoor air pollution comes from

Answer»

 carpets and FURNITURE



A GREAT deal of indoor air POLLUTION COMES from carpets and furniture.

216.

The formula for exponential population growth is

Answer»

 dN/dt = rN



The FORMULA of exponential growth is dN/dt=rN where dN/dt is the rate of CHANGE in population size, r is the biotic POTENTIAL and N is the population size.

217.

Sulphur bacteria are examples of

Answer»

 AUTOTROPHS



Sulphur BACTERIA are EXAMPLES of autotrophs.

218.

_________ is the first country to have phased out the CFCs and HCFCs which are responsible for the depletion of the ozone layer.

Answer»

 Germany



Germany is the first country to have phased out the CFCS and HCFCS which are RESPONSIBLE for the depletion of the ozone LAYER.

219.

This is used as a guide to planting and for determining the approximate date for harvesting crops:

Answer»

 Growing degree-days



Growing degree-days is used as a guide to PLANTING and for DETERMINING the APPROXIMATE DATE for HARVESTING crops.

220.

Ozone Umbrella is located in which layer of atmosphere

Answer»

 Stratosphere



The ozone layer is mainly FOUND in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 MI) above Earth, although its thickness VARIES seasonally and geographically.

221.

All food chains starts with __________ and ends with decay.

Answer»

 Photosynthesis



All FOOD CHAINS starts with photosynthesis and ends with decay.

222.

Wild life protection act was formulated during the period of ______

Answer»

 Mrs. Indira GANDHI



Wildlife protection act was formulated during the period of Mrs. Indra Gandhi in 1972. for protection of plants and animal SPECIES. before 1972,India only had five DESIGNATED NATURAL PARK.

223.

Which one of the following cycle is not a gaseous biogeochemical cycle in ecosystem?

Answer»

 Phosphorus



Phosphorus CYCLE is a sedimentary biogeochemical cycle. It DESCRIBES the lithosphere, hydrosphere and biosphere and the main RESERVOIR POOL is lithosphere.

224.

All are primary pollutants except

Answer»

 PEROXYACETYL NITRATE (PAN)



All are PRIMARY POLLUTANTS EXCEPT Peroxyacetyl Nitrate (PAN).

225.

An increase in albedo would be accompanied by ____ in radiative equilibrium temperature.

Answer»

 A decrease



An increase in ALBEDO WOULD be ACCOMPANIED by a decrease in RADIATIVE equilibrium temperature.

226.

Carbon dioxide is called greenhouse gas because it is

Answer»

 Transparent to sunlight but traps heat



Those gas molecules in the Earth's atmosphere with three or more atoms are called "greenhouse GASES" because they can capture OUTGOING infrared energy from the Earth, THEREBY warming the planet. The greenhouse gases include WATER vapor with three atoms (H2O), ozone (O3), carbon dioxide (CO2), and methane (CH4).

227.

Which one of the following is not a primary pollutant?

Answer»

 Sulpuric acid



Ozone is not a PRIMARY POLLUTANT since it is formed by the photo-chemical reaction of oxygen with the UV RAYS and not directly discharged into the atmosphere by a source. Similarly, sulphuric acid is ALSO not a primary pollutant.

228.

The horizontal extent of the ozone hole can sometimes exceed the size of the Antarctic continent.

Answer»
229.

Flora is the __________ life occurring in a particular region or time

Answer»

 plant



FLORA is all the plant LIFE present in a particular region or time, GENERALLY the NATURALLY occurring (indigenous) native plants. The corresponding TERM for animal life is fauna. Flora, fauna, and other forms of life, such as fungi, are collectively referred to as biota.

230.

One atom of chlorine can destroy over __________ molecules of ozone.

Answer»

 100000



One CHLORINE atom can destroy over 100,000 ozone MOLECULES before it is removed from the STRATOSPHERE. Ozone can be destroyed more quickly than it is naturally CREATED. methyl bromide A compound consisting of carbon, hydrogen, and BROMINE.

231.

Where are the days and nights of equal length all year long?

Answer»

 At the Equator



At the Equator the days and nights are of equal LENGTH all year LONG

232.

Exponential growth occurs when there is

Answer»

 No ENVIRONMENTAL RESISTANCE



Exponential GROWTH OCCURS when there is no environmental resistance.

233.

In which of the following the maximum plant diversity is found

Answer»

 Tropical evergreen forests



Species DIVERSITY is GREATEST in the TROPICS, particularly in tropical forests and coral reefs. The AMAZON basin in South America has the largest area of tropical forests.

234.

What is an Incinerator?

Answer»

 Furnace used for BURNING SOLID waste



Incineration is a waste TREATMENT process that involves the COMBUSTION of organic substances contained in waste MATERIALS. Incineration and other high-temperature waste treatment systems are described as "thermal treatment". Incineration of waste materials converts the waste into ash, flue gas and heat.

235.

At what time during a 24-hour day would a radiation temperature inversion best be developed?

Answer»

 Near SUNRISE



Near sunrise a radiation TEMPERATURE inversion best be DEVELOPED.

236.

Largest reptile in the world

Answer»

 ANACONDA



Largest REPTILE in the WORLD Anaconda.

237.

What is UNCED?

Answer»

 United NATIONS Conference on Environment and DEVELOPMENT



The United Nations Conference on Environment and Development (UNCED), also KNOWN as the Rio de Janeiro Earth SUMMIT, the Rio Summit, the Rio Conference, and the Earth Summit (Portuguese: ECO92), was a major United Nations conference held in Rio de Janeiro from 3 to 14 June in 1992.

238.

Thermal belts are:

Answer»

 WARMER hillsides that are LESS likely to experience FREEZING conditions



The thermal belt refers to a mountainside ZONE where FROST or freezing temperatures are less likely to occur than they are at either higher or lower elevations.

239.

Many wild plant and animals are on the verge of extinction due to

Answer»

 Habitat destruction



But SOMETIMES extinctions happen at a higher and a faster rate than USUAL. Factors such as over-exploitation, large body SIZE, small population, massive habitat LOSS and position at a higher TROPHIC level favor extinction. A plant podophyllum is at the verge of extinction due to over-exploitation.

240.

Organisms that feed upon other living organisms as a source of energy and nutrients are called as

Answer»

 Producers



Organism that MUST consume other organisms to OBTAIN FOOD for ENERGY.

241.

MoEF means

Answer»

 MINISTRY of ENVIRONMENT and FORESTS



MoEF MEANS Ministry of Environment and Forests.

242.

Minute particles and liquid droplets are collectively called

Answer»

 Aerosols



Minute particles and LIQUID DROPLETS COLLECTIVELY called aerosols ALSO are suspended in the air.

243.

How many types of habitats are there in a biosphere?

Answer»

 4



There are 4 TYPES of HABITATS in a BIOSPHERE.

244.

Ecology deals with the study of:

Answer»

 RECIPROCAL relationship between LIVING and non living components



Ecology is the study of the relationships between living organisms, including humans, and their physical environment; it seeks to UNDERSTAND the vital connections between plants and animals and the world AROUND them.

245.

Pencillium does not swallow the growth of bacterium Staphylococcus. This sort of relationship is called

Answer»

 AMENSALISM



Pencillium does not SWALLOW the growth of bacterium STAPHYLOCOCCUS. This SORT of relationship is CALLED amensalism.

246.

The Salim Ali Bird sanctuary is located at

Answer»

 Thattekad,



The Thattekkad Bird SANCTUARY has a RICH and varied birdlife. Several species of birds, both forest birds as well as the WATER birds, VISIT the sanctuaries

247.

The instrument that measures temperature, pressure, and humidity at various altitudes in the atmosphere:

Answer»

 Radiosonde



The radiosonde is a balloon-borne instrument platform with RADIO transmitting capabilities. Originally named a radio-meteorograph, the instrument is now referred to as a radiosonde, a name apparently derived by H. Hergesell from a combination of the words "radio" for the onboard radio transmitter and "sonde", which is messenger from old English.
The radiosonde contains instruments capable of MAKING DIRECT in-situ measurements of air temperature, HUMIDITY and pressure with height, typically to altitudes of approximately 30 km. These observed data are transmitted immediately to the ground STATION by a radio transmitter located within the instrument package.

248.

Herbivores are also called as

Answer»

 PRIMARY CONSUMERS



Herbivores are also KNOWN as PLANT eating animals or primary consumers.

249.

Assuming that the night will remain clear, calm, and unsaturated, the predicted minimum temperature is 32oF. Suddenly the wind speed increases and remains gusty throughout the night. The minimum temperature will most likely be:

Answer»

 Higher than predicted due to MIXING



The MINIMUM TEMPERATURE will most LIKELY be higher than predicted due to mixing.

250.

Atmospheric humidity is measured by

Answer»

 HYGROMETER



Humidity is the MEASURE of the amount of moisture in the air. A PSYCHROMETER is an example of a hygrometer. A psychrometer uses two THERMOMETERS to measure relative humidity; one measures the dry-bulb temperature and the other measures the wet-bulb temperature.