Answer:
<em>The correct option is theories. </em>
Explanation:
A scientific theory is a detailed explanation of natural researches which are supported through evidence. Scientific theories can be changed if other evidence are made which support another theory. Hence, scientific theories can change. The concepts of plate tectonics and evolution change overtime whenever new pieces of evidence are discovered. Hence, they are scientific theories.
Other options such as hypotheses are not correct because a hypothesis is just a tentative statement which can either be proved to be correct or wrong. Observations are not made on evidences hence the option observations is also not correct.
I think the correct answer to this is ‘reduced prey
quality’.
<span>This is because in the study made by Trites and Donnelly,
they found out that steller sea lions were experiencing nutritional stress.
Nutritional stress means that although the prey contains all the necessary
nutrients, the quantity of prey is not enough due to a reduction in overall
biomass of prey locally. </span>
By studying seismic waves
Answer: Increase
Explanation:
There is an economic notion that holds that a person's preference is independent of their current income. This means that given more income, people will generally demand more expensive things.
This is the case here. Mr. Brennan may not have been able to afford big houses before winning the lottery but now that he can, he would probably want more big houses. This translates to an increase in his demand for them.
The transport of material due to gravity.
