Since the 1970s, many changes in waste disposal have taken place. Recycling has become a regular part of garbage pick-up. In some places it is mandatory. Compost pick-up, clean incineration, and proper disposal in high-tech, environmentally-friendly industrial centers is common practice for industrialized nations. This is not true in other parts of the world where poor waste management practices are still in use.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully