Fill in the blank to complete each statement.
the land that supplies water to a river system is called
source pollution.
pollution from a single, identifiable source is called
pollution that is difficult to link to a particular
source pollution.

true

explanation:

the value of the 4 in the hundreds place is 400 while the value of th e 4 in the tens place is 40

400 is way bigger than 40.

b. 20: 5

explanation:

20% of the worlds population lives in southwest asia, and less than 5% of the world's

land area.