Light limitation in dense rainforest is always an issue — with more light providing more scope for photosynthesis. (judithcurry.com)
While some home educators choose to use a curriculum, or follow school subjects, there's far more scope for encouraging children to follow their own interests, whatever they may be. (home-ed.info)
Similar roles exist in industry, but working in an academic environment offers a lot more scope for you to set your own objectives and targets. (sciencemag.org)