Where was it first discovered that the earth's ozone layer was being depleted? africa antarctica south america australia

Name the river that forms a natural border between new york and new jersey and is the site where a passenger jet made a miraculous landing on january 15

Ray lo bisects nlm, lm=18, no=4, and ln=10. what is the value of x?

Residents of moldova are mainly a. russian b. ukrainian c. serbian d. romanian the answer is d. romanian