42 or 43 is the number of how many total countries in the western hemisphere
As published in EPA's national water quality inventory report,
40 Percent of rivers and 46 % of lake are considered to be plluted. these sources, called the surface water are vulnerable to pollution discharged of pipesand runof pollutants washing off the lands.
These sources are extremely unsafe to drink and to swim in
B. I did the test on Edge good luck hope it helps
Answer:
remote-sensing images from airplanes for map making, GPS & GIS
Objects: satellites
,automobiles
,GPS units
,compasses
,computers
Explanation:
