Answer:
Technology
Explanation:
Technology is always changing and improving. It will change the way we communicate and make it easier and faster.
I believe the answer is administrative<span> regulations.
The primary source of law will include all laws/regulations that are formally issued by the Government.
Examples of primary source of laws are Treaties, administrative regulations, decision made by the court, legislatures, and executive orders.</span>
The answer is a Natural Experiment.
A natural experiment takes place in natural settings and are used when independent variables can't be manipulated directly for ethical/practical reasons, so in this case the toddlers playing. Any effect observed happens naturally. They aren't seen as true experiments as the independent variable (toddlers playing) hasn't been changed deliberately to see effect on dependent variable (aggressiveness).
Option 2
Water is more susceptible to heat