The workers can be
protected by "trench box". Trench shields which are known as
Trench Boxes or Trench Sheets as well, are steel or aluminum structures
utilized for securing utility laborers while playing out their obligations
inside a trench. They are generally developed with sidewalls of changing
thicknesses held separated by steel or aluminum spreaders.
<span>
The correct answers will be bolded.
6.
“Your longevity will match that of gold and jade” means (1 point)
the poet will turn to stone.
the poet will turn to metal.
the poet will never die.
the poet will be wealthy.
7. What can you conclude from this poem? (1 point)
The Han did not believe in fairies.
The Han believed in magic.
The Han craved wealth.
The Han traveled over Qin Mountain daily.
8. You can infer from the poem that the Han people highly valued (1 point)
gold and jade.
brightness and beauty. I think it might be the other one.
traveling in the mountains.
white deer.
9. The line: "you will never reach senility” means (1 point)
the poet will never die.
the poet will never get old.
the poet will never be rich.
the poet will never see fairies.
10. What does the poet want from the fairies? (1 point)
gold
jade
the Dao</span>
the pavilions
The answer is: Scientists study how things work while engineers create new things
Answer:
Personal Opportunity Cost - Spare non drive time sacrifised
Social Opportunity Cost - Fuel efficiency (high pollution), Road Traffic (Congestion issues).
Explanation:
Opportunity Cost is the cost of next best alternative, foregone while choosing an alternative. Bill can commute either by bus, or by self drive.
If Bill drives his car, opportunity cost for him is - the spare time sacrifised, that he could have used while car drive in some other activity (eg reading, listening music).
Opportunity Cost for society is - the fuel utilisation & road traffic management efficiency sacrifised, by using private instead of public transport. This leads to more pollution, more congestion on roads.
