Memory Unit 2 Selection2 VocabularyVersión en línea For use with the NatGeo ESOL Text por Melanie McCrae things you need to make a produce or to do a project resource alive something that people need and use. when you depend on something you need it; require globe a model of the Earth amount crops plants that farmers grow depend rainfall the total number of quantity something that is living materials the total rain , snow or sleet that falls in a period of time