The harmful effect of continuous application of sewage water over several years may result in enrichment of
The continuous application of sewage water over several years can result in the enrichment of cadmium in the soil. Sewage water often contains heavy metals like cadmium, and its prolonged use can lead to the accumulation of cadmium in the soil, posing a risk to plant and human health.
345 = √2704 ÷ (?% of 104) + 7 3
Simplify the following expression
4567.89 - 567.89 - 678.89 = ?
756 + 432 – 361 + ? = 990
36% of 640 – 12.5% of 352 + 25% of 640 = ? – 48% of 432
84% of 8400 + 42% of 6120 =?
(72 × 10 ÷ 20) × 10 = ?
(5/8) × 480 + (3/9) × 450 = (5/2) × ?
(13)2 - 3127 ÷ 59 = ? x 4
5490 ÷ 15 × 18 + 450 = ?