In the sentence, "are considered" functions as a passive construction that indicates a general belief or consensus regarding the classification of food, clothing, and shelter as basic necessities of life. It suggests that society collectively acknowledges these items as essential for survival and well-being. The phrase emphasizes the importance of these necessities without attributing the judgment to a specific individual or group.
My house is my shelter.
the dog kept shelter from the rain ........
shelter
We are hopeful that we have a shelter to live in.
The lost traveler had to find shelter soon before the rainstorm came.
Shelter can mean protective at some times, but it wouldn't be considered overprotective.
No, a gazebo is a temporary shelter.
Shelter can be used as either a verb or a noun. As a noun: "As it started to rain, the campers needed to find shelter to stay dry." As a verb: "A tent made of leaves and branches was used to shelter the campers."
OF COURSE
The sanctuary was perfect for praying to the Lord almighty!
aprairie dog digs ahole in the ground for shelter
She described the lodge as a small warm shelter.