Answer the question using the following budget information for a hypothetical economy. Assumethat all budget surpluses are used to pay down the public debt.
Government
Spending
Tax
Revenues
GDP
Year 1 $450 $425 $2,000
Year 2 $500 $450 $3,000
Year 3 $600 $500 $4,000
Year 4 $640 $620 $5,000
Year 5 $680 $580 $4,800
Year 6 $600 $620 $5,000
Refer to the above data. If year 1 is the first year of this nation's existence and year 4 is the present year, the public debt as a percentage of GDP in year 4 is:.
a) 1.39 percent.
b) 7.5 percent.
c) 2.5 percent.
d) 3.9 percent.

answer; i believe the correct answer is (sales promotion;

ans.

heterothermic organisms include those organisms that can switch between homeothermic (having body temperature higher than environment) and poikilothermic (having variation in internal body temperature) strategies.

some migratory birds show heterothermy as they decrease their metabolic rate during cold nights to keep their body temperature low. drop in metabolic rate allows increase in production efficiency of birds that reduces the internal body temperature to make it equal to external cold temperature during cold nights.

thus, the correct answer is 'birds allow their temperature drop in order to increase their production efficiency.'

answer; institution based;

answer; ///blank(1) longer; blank(2); lessi believe this is correct, plz check first; good luck';