A landform is a natural feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography.
The leaf because it is the major structure for photosynthesis in a plant.he leaf would have the most chloroplasts because it is the major  structure for photosynthesis in a plant.
Chloroplast (plant cells only) : Chloroplasts are specialized organelles found in all higher plant cells. These organelles contain the plant cell's chlorophyll responsible for the plant's green color and the ability to absorb energy from sunlight.