answersLogoWhite

0


Best Answer

There have been an increase because multiple births are related to women having babies later in life.

User Avatar

Wiki User

11y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why has the number of twins increased over the last 20 years?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Has the number of drunk driving fatalities increased or decreased in the last twenty-five years?

no


How many injuries did people get due to snow?

1000s and the number of injures have increased over the last couple of years


Why world's population has increased rapidly in last hundred years and main problems will cause?

Why world's population has increased rapidly in last hundred years and main problems will cause?


How has the climate changed over the last 100 years?

The temperature has increased.


What allergy has increased dramatically in recent years?

Food ( as opposed to non food) allergies or intolerance has increased dramatically over the last twenty years.


How has the percentage of teenagers beeing anorexic changed in the last few years?

It has increased.


What has happened to resource consumption in the last several hundred years?

it has increased dramatically


What percentage has public transportation ridership increased in the last 6 years?

21%


Which livestock population has increased by the greatest percentage in the last 40 years?

chickens


Has violence increased in the last 5 years in the US?

Compare the last 5 years of the FBI Uniform Crime Report for some reported numbers.


What best describes global CO2 emissions?

The amount of CO2 released by humans has increased over the last 200 years. This increase is primarily due to using fossil fuels in industries and vehicles.


Has the occurrence of tornadoes and hurricanes increased over the last 20 years?

No. While there appears to be a possible increase in the number of tropical storms, neither the number of tornadoes nor the number of hurricanes show any real increase in activity.