1. Obtain water: Plants need to access water from the soil and transport it throughout their bodies. They do this through roots, which absorb water, and vascular tissue, which carries it upwards.

2. Retain water: To prevent dehydration in the drier terrestrial environment, plants have evolved features like waxy cuticles on leaves and stomata that can open and close to control water loss through transpiration.

3. Support themselves: Unlike in water, plants on land need structural support to stand upright and access sunlight. They accomplish this through cell walls made of cellulose and specialized tissues like xylem and phloem, which provide strength and stability.

4. Reproduce: Plants have developed various strategies for reproduction on land, including pollination by wind or insects, and the dispersal of seeds through wind, animals, or water.

5. Obtain nutrients: While they can get water from the soil, plants also need essential nutrients like nitrogen, phosphorus, and potassium for growth. They obtain these through their roots, which absorb them from the soil.