The Bornean orangutan is listed as Endangered and numbers approximately 41,000, while the Sumatran orangutan is considered Critically Endangered with an estimated population of 7,500. A century ago, more than 230,000 orangutans likely roamed in the wild.
Making the world better, one answer at a time. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams. Thus, the average weight of a letter is one ounce or less. If you go to the United States Postal Service web-stie, you will find that one US First class stamp ($0.42) will cover the cost to mail a letter that weighs up to 1 ounce, about 28.35 grams.  Minor edit?
The U.S. postage required to mail a first-class letter from Texas to Vancouver, Canada is $1.15, according to the United States Postal Service. This rate only applies to letters weighing up to 2 ounces. Continue Reading. Postage for letters weighing over 2 ounces but not more than 3 ounces is $1.61. The postage on more than 3 ounces is $2.08. The maximum weight allowed on first-class, international letters to Canada is 3.5 ounces. Letters exceeding this amount are charged international flat-rate prices.