Why Are Birds That Inhabit Areas with High Acid Deposition

question 2

Multiple Choice

Why are birds that inhabit areas with high acid deposition more likely to lay eggs with thin shells?

• A)acid deposition increases the effects of DDT which has already been implicated in thinning eggshells.
• B)high rates of cancer due to acid deposition impact birds' ability to form eggs.
• C)acid deposition acts as an endocrine disruptor that interferes with reproductive hormones in bird species.
• D)in acidic soils calcium, an important nutrient for eggshell production, washes away and so less is available to birds in their diets

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