Forrest soils tend to be somewhat acidic. the acidity can be increased with acid rain. which ion is typically present in soil with a high acidity? a. calcium b. sulfate c. bicarbonate d. phosphate

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.