Unit 2 Activity 2

Instruction: Answer the question below.

Ahmad has 4 ponds and each pond has different water surface area. Pond 1 has a water surface area of 0.1 ha and depth of 90 cm, pond 2 has an area of 0.2 ha and depth of 110 cm, pond 3 has an area of 0.4 ha and depth of 120 cm, and pond 4 has an area of 1.0 ha and depth of 130 cm. Each culture period will be 4 months and there will be 2 cultures a year. Drying and pond preparation will be carried out in between every culture. Other information including weather and soil of the area are as follows:

Using the information and formulae given, calculate the volume of water in cubic meters (m3) needed in one year when all the ponds are operational.