Each statement below can be described as an observation, fact, or conceptualization. Indicate which of these three possibilities best characterizes each statement and explain your choice a. All 100 observers agreed the sun rises in the east every day
b. This green apple is sour
c. Planets move from west to east against the background of fixed stars because they are revolving around the sun, just as the Earth does.
d. The United States fought in Vietnam to preserve democracy from communist aggression
e. All green apples are sour.

Explanation:

A fact is something that occurs in the real world. Something that can be verified that is whether correspond to experience.

a. All 100 observers agreed the sun risesthis is a fact

Observation tend to acquire information from a primary source. In living beings, observation make use of the senses, it can be perception and may require data recording via the use of scientific instruments.

This green apple is sour--- this is an observation

Conceptualization involves writing out clearly the key concepts. It involves what comes to the mind after thinking about a subject.

d. The United States fought in Vietnam to preserve democracy from communist aggression --- conceptualization

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.