You probably know what the necessities of life are. But has an adult ever told you “You must eat chocolate, or use your device, or play with that toy – or you won't survive?” As much as you think you need these things every day, you would keep on living if you didn’t have them. That’s the difference between “needing” something and “wanting” something.
All living things have basic needs for their survival. Animals and plants need water, oxygen, food and shelter to live their different lives on Planet Earth. If the basic needs balance and conditions are right, then living things can thrive.
How do you ’survive’? Think of what you really ‘need’ in order to live.
How do you 'thrive’? Think of what you 'want’ that makes your life better.
A plant has needs just as you do: some are the same, others are different. The availability or lack of some things will influence the plant and its surrounding environment. Generally, these fall into two categories:
1) Abiotic (non-living) factors
2) Biotic (living and once-living) factors