<span>Here is the full choices for this question:
A. extend the life of your car
B. help you avoid costly repairs
C. prevent dangerous breakdowns
D. all of the above
I believe the answer is: D.all of the above.
Periodic tuneups refer to a scheduled maintenance that is ,made to ensure that your car is run at its peak efficiency.
Conducting periodic tuneup would prevent the gears in your cars from deteriorating and make you become aware of potential problem before it becomes too damaging</span><span />
Economic growth and new wealth changed business in Europe because more people had wealth, they started buying more manufactured goods <span>
</span>
Answer:
Americans have often prided themselves on their rich diversity.
Explanation:
B. Canadian government provides healthcare to its citizens
Answer:
The sex ratio is the ratio of males to females in a population.
Explanation:
It is generally divided into four subdivisions:
primary sex ratio — ratio at fertilization
secondary sex ratio — ratio at birth
tertiary sex ratio — ratio in sexually mature organisms
quaternary sex ratio — ratio in post-reproductive organisms
