One reason it was a health threat is it caused teeth to become ground down which would then lead to infections. The same was true with their eyes and lungs, sand would be blown into their eyes or inhaled into their lungs and then could cause infections.
Answer: The stage of cognitive development that Reina is in is the The concrete operational stage.
Explanation: According to Jean Piaget's theory of development, there are four stages of development. They are; sensorimotor; preoperational; concrete; and formal operational stages.
The concrete operational stage occurs in children between the age of 7 to 11 and in this stage, the child has learned to think in a logical manner if they are familiar with the concepts. Reina earning A's on her math tests is because she's already familiar with the concepts of multiplication and division.
Answer:
The story of America is the story of expanding liberty: an ever-widening circle, .more powerful force now than it was during the heyday of the Victorian era.
Goods that are considered to be needs tend to be inelastic when the price changes.
They extend from our shore into the continental shelf. Not to mention, we have an EEZ, or exclusive economic zone, which extends about 200 nautical miles from our shores. In this area, we have full economic jurisdiction.
