Organic acids developed from organic matter decomposition act as chelating agent may be
The correct answer is D
236.23 - 653.23 + 696.23 = ?
?2 - (40% of 240) = 25 X 5
30% of 8/5 × 5/7 × 2870 =?
√1369 + √1024 + √841 =(?)2 − 46
30% of 750 + ?% of 400 = 25% of 1016 + 3
Simplify: (1 ÷ 0.08)
1111.25 × 9.05 + 2323.23 × 9.05 – 2121.37 ×9.05 =?
(22² × 8²) ÷ (92.4 ÷ 4.2) =? × 32
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