Indoor air pollution is a common threat to human health, the new study looked at five common house plants and found that when it comes to removing harmful chemicals from the air, those five plants are better than others. 室内空气污染对人类健康...
Science and Technology Water purification Any old iron? 科技 水的净化 有废铁吗？ A little-known chemical may provide a new way to clean water 一种鲜为人知的化学物质可能为清洁水源带来一线希望 IRON in water is normall...
