1. Una joven sentada en el puerto de La Palma observa que en un minuto 20 crestas de las ondas del agua golpean uno de los postes del puerto y que la distancia media entre crestas sucesivas es de 1,5m. Calcular: La frecuencia de las ondas, El periodo de las ondas, La rapidez de propagación

If birth rates fall below the replacement level, then a country is in which stage of demographic transition? a. urbanization/industrialization b. mature industrial c. postindustrial d. pre-modern

Most of the world's booming population growth is occurring in countries that arenot highly industrialized. the high birthrates in these countries often result inlower standards of living. which of the following would be the best solution tothis global economic problem? o a. encouraging developing countries to participate in global tradeob. creating an international seed bank to protect biodiversityoc. forming strict regulations on greenhouse gas emissionso d. establishing international agreements to prevent overfishingis it a b c d

What is 5 questions you should ask yourself when trying to tell if a health resource is reliable