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.
Once the USPS reaches that ceiling, it is required to roll back the 4.3% surcharge it had tacked on to first-class mail and commercial postage rates. That means that the cost of a stamp to mail a standard letter will decrease from 49 cents to 47 cents this Sunday. The price of sending a postcard will also drop by a penny, to 34 cents, while international mail will go down by a nickel, to $1.15 per letter instead of the current $1.20. While the price cut will be a boon for many consumers, itâs bad news for collectors and investors in so-called âForever stamps,â the generic stamps valued at whatever the current postage rate is no matter when they were purchased.