Micheal had 1000 viruses on his phone and he got rid of 99 how much viruses does he have to get rid of?

901

Explanation:

1000 - 99

a historian researching the immigration policies of the early 1900s would expect a source written today,rather than in 1910 to :

( a ) be more interested in objective data and statistics.

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.