4. An average worker in Brazil can produce an ounce of soybeans in 20 minutes and an ounce of coffee in 60 minutes, while an average worker in Peru can produce an ounce of soybeans in 50 minutes and an
ounce of coffee in 75 minutes.
(a) Who has the absolute advantage in coffee?
(b) Who has the comparative advantage in coffee?
(c) If the two countries specialize and trade, who will import coffee? Explain.
(d) Assume that the two countries trade and that the country importing coffee trades 2 ounces
of soybeans for 1 ounce of coffee. Explain why both countries will benefit from this trade.

Answer(a) cheap enough for small shops to purchase;

Like many students at university, you may be unhappy about the results you attain in exams. you may feel that even with all you are doing there must be something more -- or different-- you could be doing to get better grades. we have all at some time or other heard of that student who only studies a couple of hours for final exams and scores a's every time. we stand in awe of those who seem to breeze through without undue effort and seem to need very little in the way of studying to nail an exam. the reasons for success, in what i think are the vast majority of cases, are less esoteric than many students think: successful students consistently apply a series of productive strategies with view to attaining clearly identified learning and grade goals throughout the academic term.

Manual pipetting creates a musculoskeletal load on the neck, shoulders, and upper limbs and the type of injuries that this can lead to is called repetitive stress injuries.