Calculate the amount of pure CaCO3 that could theoretically neutralize the H+ ions in a year’s worth of acid rain if a 1-ha site received 500 mm of rain per year and the average pH of the rain was...

Calculate the amount of pure CaCO3 that could theoretically neutralize the H+ ions in a year’s worth of acid rain if a 1-ha site received 500 mm of rain per year and the average pH of the rain was 4.0.

Discuss the significance of soil pH in determining specific nutrient availabilities and toxicities, as well as species composition of natural vegetation in an area.