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To rearrange any equation, you must always do the same to both sides.
If you take a number from one side, you must also take it from the other. If you divide a side by one number you must divide ...

One environmental factor which has an effect on a plant is light.

The stems of a plant grow towards the light, and roots grow away from the light. 

We call ...

Osmosis is basically the movement of water across a semi-permeable barrier (i.e. a barrier that lets some molecules through but not others - like a cell membrane). Usually, the water m...