The diagrams below show the energy transfers in two light bulbs. One is an ordinary filament bulb and the other is an energy-saving bulb. Which is the ordinary filament bulb?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

If your blood becomes too concentrated with iona, what will happen to the red blood cells