A leap year is a calendar year that contains an additional day added to keep the calendar year synchronized with the astronomical year or seasonal year.
Answer:
they refused to allow southern representative and senator to take their seats in Congress
Answer:
This is an example of an experimental design.
Explanation:
Experimental design in research involves controlling the variables in order to prove the hypothesis. In an experimental design there must be an experimental group, that in this case is the group that received an herbal supplement, and a control group, that was only administered placebo. By having a control group, both groups can be measured and compared at the end of the experimental phase, to measure the influence of the independent variable.
Warmth and heaviness is your answer I hope this helps you
