C: the liquid turns to a blue-green colour from yellow because the co2 is being absorbed from the from the water and oxygen is being released as a result of photosynthesis.
E: in the experiment, we exhaled into a solution of Bromothymol blue turning it yellow then a cap was placed overtop and it was allowed to sit next to a heat lamp which was being used as an aid in the reaction because of the lack of sunlight. After the two weeks had ended there was a clear difference in the colour in the plants left with a plant inside opposed to those without. the experimental group had changed to a blue-green colour and the control group had mostly stayed the safe with a few exceptions caused by