In which situation would it be least likely for a scientist to revise her experimental methods?
if her results support her hypothesis
if her data do not support her hypothesis
o if no conclusions can be drawn from the data
if results are the same after repeating the procedure

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

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

Describe characteristics of a good respitory surface