Answer:
The formation of oil begins in warm, shallow oceans that were present on the Earth millions of years ago. ... This material then lands on the ocean floor and mixes with inorganic material that enters the ocean by rivers. It is this sediment on the ocean floor that then forms oil over many years.
Answer:
what kind of physical? for humans?
Answer:
The colleague is making sure the researcher is meeting which condition of causal inferences?
Other explanations for the association between the independent and dependent variables must be ruled out.
Explanation:
Shamar seems to have found a connection between early childhood poverty and lower well-being in adulthood. However, it would be a mistake for him to not consider other explanations for such an association between the variables. As his colleague pointed out, it is important to rule out other possible reasons that may lead to the same result. There is a time in those subjects' lives - after the childhood and before the adulthood - where factors may occur that may very well influence those people's well-being.
A. oceans atmosphere sunlight
