Final answer:
Flood-prone rice areas are characterized by their susceptibility to flooding, which can cause damage to the cropland.
Step-by-step explanation:
Flood-prone rice areas have certain characteristics that make them susceptible to flooding. These characteristics include the presence of fertile deltas, such as those in Bangladesh, where abundant food crops can be grown. However, flooding in these areas can cause serious damage to the cropland by eroding the soil and washing away seeds or crops. Additionally, the low-lying agricultural lands of Bangladesh are at risk of increased flooding and devastation due to climate change.
Rice fields in flood-prone areas are often flooded as a weed prevention technique since most weeds do not thrive under flooded conditions. The flooding also helps in regulating temperature, controlling weeds, and dissolving nutrients for the rice to absorb. Moreover, the survival of rice plants in flooded conditions depends on physiological, morphological, and metabolic adaptations.