C - A typical star i just took the test and it was correct
New Zealand has recently begun to diversify its trading partners because Britain entered the EU, which imposes tariffs on non-members, including New Zealand.
Answer: Option C
<u>Explanation:
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In 1973, when Britain joined the European Union (Then European Economic Community) it came as a big shock to New Zealand as majority of its exports used to go to Britain. After this development New Zealand started to diversify its trade by reaching out to other potential trade partners.
The country had brought serious of reforms in the economy since 1980's by opening up its economy and today New Zealand exports its wide arrange of products to China, U.S, European Union and Australia.
C Temperature is your answer. Your Welcome
Set this up as
10 = 40 (1/2)t/28
and solve for t in years.
10/40 = (1/2)t/28
log(0.25) = (t/28) log(0.5)
t = 28 log(0.25) / log(0.5) years = 56 years
Test the answer:
56 years = 2(28 years) = 2 half-lives, so the remaining amount should be 1/2 of 1/2 of the initial amount, i.e. 1/4 of the initial amount, and 10 mg = 1/4 of 40 mg.