Answer:
The correct answer would be - increase in green house effect, increase in temperature and rise in sea level are some major response.
Explanation:
Carbon dioxide concentration soar over 400 ppm which means there are 400 particles of carbon dioxide in a million particles of air. It is on the highest level of all time from the beginning. Carbon dioxide is a green house gas which means it is able to absorb heat and trap it in air which leads to increase in temperature of the earth.
Increase in earth temperature will lead to melting of ice lands which result in rise of sea level and cities will drown in sea. Other effect will be pollution in atmosphere and warmer climate and change in pattern of climate. There are many other direct and indirect response in accumulation of carbon dioxide concentration.
Answer:
The blacktop, which is used on the asphalt driveways are mainly formed of the sand, rock, the cement made up of asphalt, and a petroleum product that has a tar-like appearance. The base of the driveway is formed of a four to eight-inch layer of solid filled with granules. The base is further covered by a two or three inches hot and fresh asphalt, which with the assistance of a heavy machine gets compacted briskly.
The influence of the solar radiation is different on a shoveled asphalt driveway and a snow-covered asphalt driveway. The particles present within the shoveled asphalt driveway captivates the radiation due to which it turns hot. On the other hand, the radiation gets reflected into space by the snow-covered asphalt driveway as the snow on the top is white and smooth.
The mathematical evaluation methods use to calculate benefits and costs can make the calculation of cost benefit analysis to be very complicated. The definitions and calculations of benefits and costs are quite controversial in term of the valuation and discounting calculation methods that are applied to them.
