Answer
1. Water
2. Air (Oxygen & Carbon Dioxide)
3. Light (for photosynthesis)
4. Essential nutrients (which are mostly obtained from soil, e.g nitrates)
Work Step by Step
Plants require the following:
1. Water
2. Air (Oxygen & Carbon Dioxide)
3. Light (for photosynthesis)
4. Essential nutrients (which are mostly obtained from soil, e.g nitrates)