Answer: a) Observation b) theory c) observation d) law
Explanation:
As we know that
Observation is the process of monitoring a particular thing very closely.
Law is the way to explain the body of observation with a help of mathematically statement or verbally. It represents the cause and effect between the elements which is generally observed.
Theory is the explanation that is tested repeatedly and verified with some method.
(a) All coastal areas experience two high tides and two low tides each day. - observation
(b) The tides in Earth's oceans are caused mainly by the gravitational attraction of the moon. - theory
(c) Yesterday, high tide in San Francisco Bay occurred at 2:43 a.m. and 3:07 p.m. - observation
(d) Tides are higher at the full moon and new moon than at other times of the month. - law
Answer:
d. That the nation could not stand if it remained divided over the issue of slavery.
Explanation:
Lincoln gave this speech at the Illinois Republican State Convention, while he was not a very popular politician. But at this stage when he used the phrase "house divided", it tried to portrait the situation of the United States which was divided economically and geographically on the issue of slavery. His firm stand was not to compromise, end the dilemma forever. The republican stand to no compromise showcased that everyone has to be on either side of the issue. His statement is well analyzed by the latter historian as it shows the early sign of civil war.