Company A is a leading pharmaceutical company. To develop a drug for COVID19, it is investing a thousand million dollars in a project.
How many zeros are there in one thousand million dollars?

The correct option is A 9
Amount invested in developing COVID19 drug = One thousand million dollars

Let's see the place value chart.


So,
One thousand million dollars = 1,000,000,000 = One billion dollars

Thus, there will be 9 zeros in one thousand million or one billion dollars.