From the conservation point of view, the action is better than using the bottle just once, but recycling the bottle is better.
Conservation means conserving resources in order to promote their long-term use and sustainability.
A disposable bottle that is used only once does not promote conservation in any way because this will put pressure on the raw materials being used to manufacture such a bottle.
Using the bottle several times before disposing it will ease the pressure a bit. However, recycling the bottle is actually the best way to go because this will totally ease off the pressure to manufacture new bottles in order to meet demands.
More on conservation can be found here: https://brainly.com/question/7557324