14. TO CALCULATE THE EQUIVALENT SOUND PRESSURE LEVEL OF THE MEASURED DATA.

REQUIREMENTS: GPS Tracker Notebooks Norse level meter Pencil Stopwatch THEORY: Sound pressure

12. DETERMINATION OF AMMONIA CONTENT IN GIVEN WATER SAMPLE

APPARATUS REQUIRED: Measuring cylinder Pipette Conical flask Spectrophotometer Aluminum foil THEORY: Ammonia

11. DETERMINATION OF PHOSPHATE OF GIVEN WATER SAMPLES OF BOTANICAL POND

REQUIREMENTS: Measuring cylinder Funnel and filter paper Spectrophotometer CHEMICAL REQUIRED: Stannous chloride

9. TO DETERMINE TOTAL IRON IN GIVEN WATER

REQUIREMENTS: APPARATUS REQUIRED: CHEMICAL REQUIRED: THEORY: Iron is second most abundant metal