The Late Bronze Age in the Middle East was a time of broadly shared societies and ways of life. The Cosmopolitan human progress in the Middle East utilized conventions from the Hittites, Mesopotamians, and Egyptians. This human progress created in light of the fact that they had new innovation from other development, better weapons, and they were effective. There was a considerable measure of contact between various states and exchange. It enhanced the standard living for everybody.
Protective systems are methods of protecting workers from cave-ins of material that can fall or roll into an excavation, or from the collapse of nearby structures. As mentioned in earlier chapters, if an excavation is less than 5 feet deep, OSHA does not require a protective systems unless the competent person sees signs of a potential cave-in. (It is important to remember that a wall collapse in a trench four and 1/2 feet deep can still have serious results!) For trenches between 5 feet and 20 feet deep, shoring and sheeting, shielding, sloping and benching are all acceptable protective measures. It is up to the planners of the construction project and the competent person on site to determine which systems will work best. If an excavation is greater than 20 feet deep, a registered professional engineer must design the protective system.
Shoring systems are structures of timber, mechanical, or hydraulic systems that support the sides of an excavation and which are designed to prevent cave-ins.Sheeting is a type of shoring system that keeps the earth in position. It can be driven into the ground or work in conjunction with a shoring system. Driven sheeting is most frequently used for excavations open for long periods of time. Another type of sheeting, in which plates or shoring grade plywood (sometimes called Finland form) is used in conjunction with strutted systems such as hydraulic or timber shoring. These strutted systems are also referred to as active systems. The most frequently used strutted system involves aluminum hydraulic shoreswhich are lightweight, re-usable and installed and removed completely from above
Answer:
Option A
Explanation:
The green houses gases concentration increases in the the troposphere layer of the atmosphere due to which the sunrays (IR radiation) reflected back by earth are restricted by the green house gases thereby increasing the temperature of the earth and make the climate warmer.
Hence, option A is correct
This problem is based on the Greenhouse effect.
CO2 is one of the Greenhouse gases.
Gasoline and diesel cars gasoline burns fossil fuel and produce a lot of CO2 increasing the Greenhouse effect.
The sentences of the statement for the this case may be ordered to describe very well what happens with the fossil fuels and their effect in the planet.
This is the right order:
1) fossil fuels burned to run vehicles release co2
<span>2) CO2
traps heat and warms the atmosphere.
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<span>3) The global surface temperature increases
4) ice and snow in
polar regions melts.
5)</span><span><span> large amounts of freshwater flow into
the ocean
6) </span></span><span>sea levels rise.
</span>
<span><span />7) the island floods with seawater.
8) human life,
buildings, and infrastructure are at risk.
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