Which activity will help the students understand the importance of clean water? A. Categorize the various chemicals used for the purification of water as harmful or harmless to humans.
B. Visit the city's hospitals to learn the various symptoms of waterborne diseases that affect people.
C. Visit nearby bodies of water to study the types of bioindicators found in the water.
D. Promote the use of renewable energy sources like solar energy for irrigation on farms.

B. Visit the city's hospitals to learn the various symptoms of waterborne diseases that affect people.

This will show the impact that unclean water has on people.

100 dollars because yeah

9.9 years

a = p(1 + rt) . . account balance after time t at rate r starting with principal p

3000 = 2500(1 + 0.0202t) . . filling in the given numbers

1.2 = 1 + 0.0202t . . divide by 2500

0.2 = 0.0202t . . . subtract 1

0.2/0.0202 = t ≈ 9.901

it will take about 9.9 years for the account balance to reach $3000.