List two kinds of damaged caused by acid rain in Washington DC

Damage to buildings and certain memorials.

Explanation: When acids in polluted air react with calcite, a calcium-containing mineral in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, acid rain effects show up as roughened surfaces instead of smooth ones, as pits and pocks where material was removed, and as a loss of carved details. Stone surface material may be lost all over or only in spots that are more reactive. The loss of silicate mineral inclusions in the marble columns as the calcite matrix holding them together is dissolving the marble around the Thomas Jefferson memorial.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.