What is a groin vault? a. A groin vault is a structure that resembles the top half of a sphere. B. A groin vault comes from the extension of a round arch, similar to a long tube of arches. C. A groin vault has two barrel vaults of the same diameter which cross or intersect one another. D. A groin vault has two barrels which extrude into a two dimensional structure. Please select the best answer from the choices provided A B C D.

Alexis likes to study late at night because she has always been a night person. alexis is using her personal preferences to form her study routine. select the best answer from the choices provided t f

Need asap ! 1. someone at a party has just told a joke, and the photo shows a guest laughing uproariously with his head back, eyes closed, and mouth open. 2. photo of collection of vintage corvette convertibles at an automobile show. stock photography 3. photo of a mosquito filling the entire frame of the photo. 4. photo of the quilt-like appearance of grain fields taken during a ride in a hot-air balloon. 5. photo of the pollution of discarded cans, bottles, and other waste on a beach. 6. photo of the eiffel tower in paris, france. environmental photography aerial photography macro photography documentary photography stock photography candid photography

Select the correct answer. what is a dolmen? a. a megalithic tomb chamber built with the post-and-lintel method b. a large stone construction c. a tomb chamber covered with smaller rocks and dirt