Test Mode
Reading Mode
Right = 0
Wrong = 0
Air pollution is caused mainly by emissions from road vehicles, factories, power Stations, aircraft and the like and by the ‘large-scale burning of vegetation. It has long been recognized as an environmental problem, and as a source of costs to both industry and entire communities. Only relatively recently, however, has the full Significance of the impact of such pollution become apparent. and the global dominant, potentially disastrous, environmental problem facing humanity. Since the mid-eighteen century the burning of fossil fuels, deforestation, and other changes in land use have resulted in substantial increases in the concentration of carbon dioxide, ‘Methane, and nitrogen oxides in the atmosphere. By blocking the radiation back into space of much of the heat reaching the earth from the sun, these gases reduce Significantly the natural cooling - ‘effect of such radiation, thus creating a ‘greenhouse effect’ and causing a steady increase in temperatures on earth global warming. Although the Claim that: the earth’s atmosphere IS heating up has been dispute by some climatologists, the balance of scientific opinion is now firmly behind the hypothesis.
তাদের গাণিতিক গড় সমান
তাদের পরিসিমা অসমান
তাদের মধ্যমা সমান
তাদের পরিমিত ব্যবধান সমান
Air pollution is caused mainly by emissions from road vehicles, factories, power Stations, aircraft and the like and by the ‘large-scale burning of vegetation. It has long been recognized as an environmental problem, and as a source of costs to both industry and entire communities. Only relatively recently, however, has the full Significance of the impact of such pollution become apparent. and the global dominant, potentially disastrous, environmental problem facing humanity. Since the mid-eighteen century the burning of fossil fuels, deforestation, and other changes in land use have resulted in substantial increases in the concentration of carbon dioxide, ‘Methane, and nitrogen oxides in the atmosphere. By blocking the radiation back into space of much of the heat reaching the earth from the sun, these gases reduce Significantly the natural cooling - ‘effect of such radiation, thus creating a ‘greenhouse effect’ and causing a steady increase in temperatures on earth global warming. Although the Claim that: the earth’s atmosphere IS heating up has been dispute by some climatologists, the balance of scientific opinion is now firmly behind the hypothesis.
ciimatechange
environment degradation
emission of gasses
nature of global warming
reflection of heat
ultra-violet ray
burning of vegetation
atomic energy
reduction of heat
concentration of nitrogen
reduction of emissions
concentration of carbon dioxide
blocking the radiation back into space
emission of gases
burning of vegetation
none of them
atmosphere is heating up
gases are concentrating
radiation is happening
none of them
The capacity, brought by the internet, to exchange large volume of information instantaneously across the globe, and to store almost quickly retrievable inexpensive, widely available computer equipment, has revolutionized the technology of international telecommunications and data Storage, access and processing. As well as greatly reducing the time and cost involved in communicating and handling information, use of new technology is making possible the emergence of new spatial pattern of location of economic activities for many firms by removing, or greatly reducing, the cost traditionally associated with Spatial separation of Re in particular, data Processing and ‘back- nations. In an Increasing number of cases, these as ” activities are being relocated from Loped countries to developing countries able to provide the requisite skills at ] , However, the much lower take internet in Actaeon up rate of internet in Africa: and Asia than in Europe and North America, a Symptom f so-called ‘digital divide? suggest the ability thee nee possibility that the immense cost-cutting potential of IT applications may b capitalized on in wealthier countries well ahead of. - Countries,.so giving the competitive power f alienate countries. specializing in those. industry ° the wealth of intensive’ a major boost and disadvantage o, internet- countries. the ‘poorer .
adoption, application and in technology,
spatial pattern of location of Industries
IT applications and wealthier countries,
none of them
jnexpensive application of technology.
requisite skill at lower cost.
competitive advantage.
Spatial pattern of location
geographical distribution .
location of economic activities
spatial separation
none
The capacity, brought by the internet, to exchange large volume of information instantaneously across the globe, and to store almost quickly retrievable inexpensive, widely available computer equipment, has revolutionized the technology of international telecommunications and data Storage, access and processing. As well as greatly reducing the time and cost involved in communicating and handling information, use of new technology is making possible the emergence of new spatial pattern of location of economic activities for many firms by removing, or greatly reducing, the cost traditionally associated with Spatial separation of Re in particular, data Processing and ‘back- nations. In an Increasing number of cases, these as ” activities are being relocated from Loped countries to developing countries able to provide the requisite skills at ] , However, the much lower take internet in Actaeon up rate of internet in Africa: and Asia than in Europe and North America, a Symptom f so-called ‘digital divide? suggest the ability thee nee possibility that the immense cost-cutting potential of IT applications may b capitalized on in wealthier countries well ahead of. - Countries,.so giving the competitive power f alienate countries. specializing in those. industry ° the wealth of intensive’ a major boost and disadvantage o, internet- countries. the ‘poorer .
time and information management
computer and communication costs.
manufacturing costs.
data access and processing
Promotion
Download Our Mobile Apps
