One of the known effects of acid rain is that it leaches calcium carbonate out of the soil. a study in a region that received significant amounts of acid rain showed that birds were laying eggs with highly porous shells. as a result, the bird population was declining. what is the most likely cause of the observed quality of egg shells?

Scenario #2 in 2001, a population of 2,500 poison dart frogs lived in the amazon rain forest. due to increased deforestation, the population dwindled to 25 frogs in 2019. new government regulations were enacted in 2022, successfully putting an end to the deforestation of the amazon rain forest. once deforestation was stopped, the poison dart frog population was able to recover. by 2050, the population reached 8,000 frogs, of that population, 20 are homozygous recessive for being spotted (ss genotype). q2- ? q- p- p2- 2pq-