30 POINTS!! Which question cannot be answered by science? Why do rainbows appear after rainstorms? Which plants grow in the desert? Why should endangered animals be protected? What is the hardest element on Earth?

What feature of cell theory is best demonstrated in the image

Which identifies the main purpose of biological taxonomy?

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