Function. Plants also have a pH rating. Plants whose pH matches the soil's pH can take up nutrients more efficiently than plants with a pH rating different than the soil. Pine trees and the needles that they produce prefer acidic soil.
Price of a Stamp. The current price of a first class stamp is 49 cents. A domestic first class letter (1 oz.) is 49 cents. The price of each additional ounce is 21 cents. It will cost you 34 cents to send a domestic postcard.
WASHINGTON â The United States Postal Service today filed notice with the Postal Regulatory Commission (PRC) of a price increase for Mailing Services products based upon the Consumer Price Index (CPI) cap authority. The filing, if approved, would keep Forever Stamps at their current price of 49 cents.ASHINGTON â The United States Postal Service today filed notice with the Postal Regulatory Commission (PRC) of a price increase for Mailing Services products based upon the Consumer Price Index (CPI) cap authority. The filing, if approved, would keep Forever Stamps at their current price of 49 cents.