Help with Ecology? 1. How is the again of ponds and lakes affected by pollution?

2. Why must new sources of engery be found?

Other Answers (1)

• Ponds and Lakes contain stagnant waters.If waste waters generated by the near-by industries-containing heavy metals or organic acids flow into the pond or the lake it will be polluted.
  Our conventional sources like coal or oil are not likely to last long.Hence we need alternative sources .Without energy all our activities will come to a standstill. 0% 0 Votes