Que- In the stratosphere, the air temperature normally:
a. Decreases with increasing height
b. Increases with increasing height
c. Both increases and decreases depending on the season
d. Cannot be measured
Answer- Increases with increasing height
Explanation- Within the stratosphere temperatures increase with altitude (see temperature inversion); the top of the stratosphere has a temperature of about 270 K (−3°C or 26.6°F).
Que- Disease aggravated by air pollution is
a. cholera
b. rheumatism
c. bronchitis
d. haemophilia
Answer- bronchitis
Explanation- Disease aggravated by air pollution is bronchitis.
Que- The outermost zone of a biosphere reserve is
a. manipulation zone
b. core zone
c. buffer zone
d. all the above
Answer- manipulation zone
Explanation- The outermost zone of a biosphere reserve ismanipulation zone. The transition area is the outermost part of a biosphere reserve. This is usually not delimited one and is a zone of cooperation where conservation knowledge and management skills are applied and uses are managed in harmony with the purpose of the biosphere reserve.
Que- The aurora is produced by:
a. Reflections of sunlight by polar ice fields
b. Fast-moving charged particles colliding with air molecules
c. Burning oxygen caused by the intense sunlight at high altitude
d. The combination of molecular and atomic oxygen to form ozone
Answer- Fast-moving charged particles colliding with air molecules
Explanation- An aurora is caused by the streams of electrified particles (which are emitted by the sun) trapped in the magnetic field of the earth. It is produced when this magnetosphere is disturbed by the solar wind carrying the charged particles. Auroras are seen in latitudes of around 70 degrees.
Que- Leader of " Narmada Bachao Andolan "
a. Vandana Siva
b. Medha Patkar
c. Menaka Gandhi
d. Mayilamma
Answer- Medha Patkar
Explanation- The Narmada Bachao Andolan, with its leading spokespersons Medha Patkar and Baba Amte, have received the Right Livelihood Award in 1991.
Que- Who wrote the book " Violence of Green Revolution "
a. Vandana Siva
b. Sheela Dikshit
c. Menaka Gandhi
d. Arundhathi Roy
Answer- Vandana Siva
Explanation- Vandana Shiva was one of India's leading physicists and is now a leading environmental campaigner, the winner of the Alternative Nobel Peace Prize and the author of several books, including Soil not Oil (2008), Earth Democracy (2005) and Stolen Harvest (2001).
Que- Ozonosphere seen in
a. ionosphere
b. thermosphere
c. mesophere
d. stratosphere
Answer- stratosphere
Explanation- 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. The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson.
Que- Plants adapted to open, sunny habitats are
a. Sciophytes
b. Heliophytes
c. Mesophytes
d. Epiphytes
Answer- Heliophytes
Explanation- Plants adapted to open, sunny habitats are Heliophytes.
Que- Almost all of the earth's weather occurs in the:
a. Exosphere
b. Stratosphere
c. Mesosphere
d. Troposphere
Answer- Troposphere
Explanation- The troposphere is the lowest layer of Earth's atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and almost all weather occurs within this layer.
Que- Thermal belts are:
a. Pockets of warm air resting on a valley during the afternoon
b. Pockets of cold air resting on a valley floor at night
c. Warmer hillsides that are less likely to experience freezing conditions
d. Cold, below-freezing air found at the top of a mountain
Answer- Warmer hillsides that are less likely to experience freezing conditions
Explanation- 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.
Que- The term " Biocoenosis " was proposed by
a. Transley
b. Carl Mobius
c. Warming
d. None of the above
Answer- Carl Mobius
Explanation- A biocenosis (UK English, biocoenosis, also biocenose, biocoenose, biotic community, biological community, ecological community, life assemblage,) coined by Karl Möbius in 1877, describes the interacting organisms living together in a habitat (biotope).
Que- The best way to check soil erosion is by providing adequate trees and
a. Grass cover
b. Manure
c. Water
d. Sand
Answer- Grass cover
Explanation- The best way to check soil erosion is by providing adequate trees and grass cover.
Que- _________ is a mixture of 50 - 90% of methane
a. Natural gas
b. Air
c. Water
d. Bio diesel
Answer- Natural gas
Explanation- Methane also is the chief constituent of natural gas, which contains from 50 to 90 percent methane (depending on the source), and occurs as a component of firedamp (flammable gas) along coal seams.
Que- The source of atmospheric oxygen is
a. Nitrogen cycle
b. Green Plants
c. Water
d. Carbon Cycle
Answer- Green Plants
Explanation- The main source of atmospheric free oxygen is photosynthesis, which produces sugars and free oxygen from carbon dioxide and water. Hence, answer B is correct.
Que- Which of the following can be used as a method of protecting an orchard from damaging low temperatures during a radiation inversion?
a. Orchard heaters
b. Wind machines
c. Irrigation (cover the area with water)
d. All of the above
Answer- All of the above
Explanation- All of the above
Que- According to Wein's displacement law, the wavelength at which maximum radiation occurs
a. Is inversely proportional to the temperature
b. Is proportional to the temperature
c. Is inversely proportional to the pressure
d. Is proportional to the pressure
Answer- Is inversely proportional to the temperature
Explanation- According to Wein's displacement law, the wavelength at which maximum radiation occurs is inversely proportional to the temperature.
Que- Which one of the following statements for pyramid of energy is incorrect, whereas the remaining three are correct?
a. It is upright in shape
b. Its base is broad
c. It shows energy content of different trophic level organisms
d. It is inverted in shape
Answer- It is inverted in shape
Explanation- It is inverted in shape.
Que- When a liquid thermometer is held in direct sunlight,
a. It will accurately measure the air temperature
b. It will measure a much higher temperature than that of the air
c. It will measure a much lower temperature than that of the air
d. It will measure the temperature of the sun rather than the air
Answer- It will measure a much higher temperature than that of the air
Explanation- When a liquid thermometer is held in direct sunlight, it will measure a much higher temperature than that of the air.
Que- The climate of a given region is
a. average temperature and precipitation conditions for every day of the year in a given region
b. average temperature and precipitation conditions
c. its weather patterns
d. its weather
Answer- average temperature and precipitation conditions for every day of the year in a given region
Explanation- The climate of a given region is average temperature and precipitation conditions for every day of the year in a given region
Que- The green house gases, otherwise called radioactively active gases includes
a. Carbon dioxide
b. CH4
c. N2O
d. All of these
Answer- All of these
Explanation- All of these
Que- CFC releases a chemical which is harmful to ozone is
a. chlorine
b. fluorine
c. N2O
d. SO2
Answer- chlorine
Explanation- The CFCs, when released into the atmosphere, react with UV rays to form chlorine atoms which destroy the ozone layer and results in the thinning out of the ozone layer also known as the ozone hole.
Que- Birth rate is called
a. mortality
b. vital index
c. natality
d. viability
Answer- natality
Explanation- The ratio of total live births to total population in a specified community or area over a specified period of time. The birthrate is often expressed as the number of live births per 1,000 of the population per year. Also called natality.
Que- Death rate of the population
a. Mortality
b. Viability
c. Natality
d. Vitality
Answer- Mortality
Explanation- Mortality rate, or death rate, is a measure of the number of deaths in a particular population, scaled to the size of that population, per unit of time.
Que- Animals and plants are best protected in
a. Zoos
b. Botanical Gardens
c. National Parks
d. Sanctuaries
Answer- National Parks
Explanation- Animals and plants are best protected in national parks.
Que- Cement factory labourers are prone to
a. leukemia
b. bone marrow disease
c. asbestosis
d. cytosilicosis
Answer- cytosilicosis
Explanation- Silicosis is a form of occupational lung disease caused by inhalation of crystalline silica dust. It is marked by inflammation and scarring in the form of nodular lesions in the upper lobes of the lungs.