The leaves of plants in humid places are usually large, with a large number of stomata. The leaves of plants in arid areas are small in size and have adaptations to reduce evaporation: dense pubescence, waxy bloom, a relatively small number of stomata, etc. Some plants in dry areas (aloe, agave) have juicy leaves, they store water.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.