questions

19) water: classify water pollutants by 5 types suggest 1 ways to reduce the levels of each pollutant in a water supply?
a.point source,non point source,groundwater pollutant,pathogen, chemical. reduce by using less chemicals (best answer)

b. point source,non point source,groundwater pollutant,pathogen, chemical reduce by not using anything

19) air:how do people use the geographic information system as a tool for land use planning?

A. best soil to grow certain plants in

b. weather

c. climate

d.seasons

e. pest that live in area

f. all the above(best answer)
6) food: how is genetic engineering used in agriculture?

A. to make food bigger
b. grow fast (best answer)
C. to posion us
E.to help the soil


A.