Igneous rock is the answer
The correct statement is D. APICAL MERISTEMS ARE SOMETIMES CHANGED INTO FLORAL MERISTEMS.
Apical Meristems are found in the tips of the roots and in the buds of the shoots. They supply cells for the plants to grow in length.
Apical Meristems are found in herbaceous plants, woody plants, grasses, and flowering plants.
In flowering plants, shoot apical meristem develops into an inflorescence meristem which produces the floral meristem. The floral meristem is responsible for the production of the sepals, petals, stamens, and carpels of the flower.
Umm where is the questions ?
Between rivers or streams, and the dry land are areas covered by lush vegetation called the "riparian zone". These consists of shrubs, grass, and small trees. This area is highly productive due to its close proximity to a water source, as compared to the areas found farther from the rivers. The riparian zone is a terrestrial biome.