Dandelions do not require cross pollination from other dandelions to produce offspring. If just one of the white fluffy dandelion seeds is carried by the
breeze to a new location that does not have dandelions, the plant from this
single seed could start a whole new population.
How would this new dandelion population
compared to the original?

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Which layer will become saturated first when rain falls?

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