A push factor would be something like war or famine or something. A pull factor would be something like a job or new opportunity, its usually for financial reasons in my opinion. Hope this helped!
Answer:
Scientists use the geologic time scale to illustrate the order in which events on Earth have happened.
Answer: A medium-mass star will become a white dwarf at the end of it's life cycle.
Explanation:
The life cycle of a medium-mass star (according to the picture, which I can attach for you if you want) is:
1. Interstellar Cloud
2. Protostar
3. Small Star
4. Red Giant
5. Planetary Nebula
6. White Dwarf
The ways to evaluate the quantitative sources which were used in the research on climate change in South America are:
- Make sure that they are accurate
- Ensure that they are consistent with the topic
<h3>Quantitative Sources</h3>
This refers to the numerical data which is used to conduct research in order to get answers and some of the sources includes:
- Surveys
- Statistics
- Closed questionnaire
- Structured interviews, etc
Read more about quantitative sources here:
brainly.com/question/8842985
