Q: Would you have to wear a coat when on Phobos?
A: A coat is a garment used to keep a person warm. The surface temperatures on Phobos range from about −4 °C (25 °F) on the sunlit side to −112 °C (−170 °F) on the shadowed side.
The answer is yes.

Q: Would multiple average rulers be necessary to measure the length of a giant armadillo?
A: The average ruler is 12 inches or 30 centimeters in length. The typical length of the giant armadillo is 75–100 cm (30–39 in), with the tail adding another 50 cm (20 in).
The answer is yes.

Q: Could a dichromat probably easily distinguish chlorine gas from neon gas?
A: A dichromat is someone with color blindness that can have difficulty distinguishing red and green. Chlorine gas is green or yellow-green. Neon gas is red.
The answer is no.

Q: Is Thanksgiving sometimes considered a day of mourning?
A:
The Native American People in the United States were brutalized during the colonization period. Native Americans in the US often choose to mourn the genocide of their people on Thanksgiving.
The answer is yes.